<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:bb7a82b3-5e38-417a-a2ec-95b2113d5c25,g:94c1acac-eaf6-4d23-91fb-c30d1251584a-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.glpropinc.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="glpi-20250930.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_ab640dc9-bf0b-4012-900b-d285621dd25b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_OtherAssets_ab640dc9-bf0b-4012-900b-d285621dd25b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_e7ac40f1-0947-48c1-a3d6-a058a453730f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_e7ac40f1-0947-48c1-a3d6-a058a453730f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_e8d9031c-fe2d-4f87-b840-191330d16340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_e8d9031c-fe2d-4f87-b840-191330d16340" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInSalesTypeLeaseBeforeAllowanceForCreditLoss_f4939b24-de0f-46ec-881a-e4256d9def0a" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInSalesTypeLeaseBeforeAllowanceForCreditLoss"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_glpi_NetInvestmentInSalesTypeLeaseBeforeAllowanceForCreditLoss_f4939b24-de0f-46ec-881a-e4256d9def0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLease_dca0aef4-c14f-4ad0-8c8a-e957d5179877" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLease"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_NetInvestmentInLease_dca0aef4-c14f-4ad0-8c8a-e957d5179877" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_RealEstateLoansNet_88f4c035-e58e-46ca-acb6-84c73579d2ad" xlink:href="glpi-20250930.xsd#glpi_RealEstateLoansNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_glpi_RealEstateLoansNet_88f4c035-e58e-46ca-acb6-84c73579d2ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_2864935b-d015-438d-9f76-3a771de1128d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNet_2864935b-d015-438d-9f76-3a771de1128d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_a831cc7c-c77d-4103-86f3-fc48d7ccb970" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_2fb840fe-d0e8-47d1-93f5-ed2002daf38f" xlink:to="loc_us-gaap_ShortTermInvestments_a831cc7c-c77d-4103-86f3-fc48d7ccb970" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_b5a4ba6e-fde7-4793-a001-9cdaff425713" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_b5a4ba6e-fde7-4793-a001-9cdaff425713" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_3411b304-f45c-48c4-b152-fd129ca4fef3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:to="loc_us-gaap_CommonStockValue_3411b304-f45c-48c4-b152-fd129ca4fef3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d319df51-6aa4-4089-aba6-db170c42acf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d319df51-6aa4-4089-aba6-db170c42acf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8fa067c2-cef7-483d-a94b-71eba26ef0ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_8fa067c2-cef7-483d-a94b-71eba26ef0ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_fbc1f659-50d5-4262-9cf8-aadae5cc9a81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_deed4be7-03a8-49a6-96cb-72a32eb0bb27" xlink:to="loc_us-gaap_PreferredStockValue_fbc1f659-50d5-4262-9cf8-aadae5cc9a81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_c046aca5-552c-48bf-a8da-f031b19f501c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_b1578a74-a377-4fdb-9aff-e83a2c87419e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c046aca5-552c-48bf-a8da-f031b19f501c" xlink:to="loc_us-gaap_Liabilities_b1578a74-a377-4fdb-9aff-e83a2c87419e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8c4a9f5e-e250-46da-8d50-e01c14989ab5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c046aca5-552c-48bf-a8da-f031b19f501c" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8c4a9f5e-e250-46da-8d50-e01c14989ab5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_14cf2f14-cf8c-40a9-ab34-ddba090859b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d39a1046-8667-4fbb-bb9e-099568678dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_14cf2f14-cf8c-40a9-ab34-ddba090859b0" xlink:to="loc_us-gaap_StockholdersEquity_d39a1046-8667-4fbb-bb9e-099568678dbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestInOperatingPartnerships_42db5efb-c3ec-448f-b3e6-60d070a821fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestInOperatingPartnerships"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_14cf2f14-cf8c-40a9-ab34-ddba090859b0" xlink:to="loc_us-gaap_MinorityInterestInOperatingPartnerships_42db5efb-c3ec-448f-b3e6-60d070a821fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_b3388bcb-8d89-44d5-8c77-3d46439f417d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_FinanceLeaseLiability_b3388bcb-8d89-44d5-8c77-3d46439f417d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_bff48a62-2981-406c-a9b9-7941a44e9168" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_OperatingLeaseLiability_bff48a62-2981-406c-a9b9-7941a44e9168" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_71cc9653-dced-4027-80ac-dd0dbc870c17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_71cc9653-dced-4027-80ac-dd0dbc870c17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_4af9cf72-903c-4390-b0fe-264e04780f19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_LongTermDebt_4af9cf72-903c-4390-b0fe-264e04780f19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_f48b8b13-1e2f-4925-b896-ac387cd2b760" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_ContractWithCustomerLiability_f48b8b13-1e2f-4925-b896-ac387cd2b760" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent_a818fd94-fd91-417f-8943-9c44f1f5442a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent_a818fd94-fd91-417f-8943-9c44f1f5442a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_a5c3c0cb-e1f3-4a72-a2e2-04907968163d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_OtherLiabilities_a5c3c0cb-e1f3-4a72-a2e2-04907968163d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrentAndNoncurrent_bab95cac-dba3-4c91-93dc-78945d653cf9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_8f8437e8-d16e-4824-ac90-9328eeaff6c2" xlink:to="loc_us-gaap_AccountsPayableCurrentAndNoncurrent_bab95cac-dba3-4c91-93dc-78945d653cf9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="simple" xlink:href="glpi-20250930.xsd#CondensedConsolidatedStatementsofIncome"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_2a857db6-0974-4cde-9bd1-4a1fb683dfa2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncome_819f66d6-3f1b-4e97-89df-0ef420dc1f81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2a857db6-0974-4cde-9bd1-4a1fb683dfa2" xlink:to="loc_us-gaap_OtherNonoperatingIncome_819f66d6-3f1b-4e97-89df-0ef420dc1f81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_94f1dea1-7c0f-4d25-aba6-9e42f50b00d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2a857db6-0974-4cde-9bd1-4a1fb683dfa2" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_94f1dea1-7c0f-4d25-aba6-9e42f50b00d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_bbe2e0e8-4aa8-4b29-a0e5-3e993b3e3e84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2a857db6-0974-4cde-9bd1-4a1fb683dfa2" xlink:to="loc_us-gaap_InterestExpenseNonoperating_bbe2e0e8-4aa8-4b29-a0e5-3e993b3e3e84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f7d2aa14-4da9-4285-ab33-576601f5ac2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d1c6e56e-cbdb-46e8-9d40-951a25cc3e64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_f7d2aa14-4da9-4285-ab33-576601f5ac2b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d1c6e56e-cbdb-46e8-9d40-951a25cc3e64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_82d4c535-0f88-4d5e-aae5-630ad0cce8b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_f7d2aa14-4da9-4285-ab33-576601f5ac2b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_82d4c535-0f88-4d5e-aae5-630ad0cce8b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_c6327672-f5a8-4f27-8394-c5490a60f98a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_eca6a747-1dcc-4444-83f3-b9099484a620" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_c6327672-f5a8-4f27-8394-c5490a60f98a" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_eca6a747-1dcc-4444-83f3-b9099484a620" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_7670f78f-195a-43b3-b710-b069ea5b771e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_c6327672-f5a8-4f27-8394-c5490a60f98a" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_7670f78f-195a-43b3-b710-b069ea5b771e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6ddd6b3f-e7c1-4e62-a88f-007ffc53a256" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d1f4cb3a-abda-41cc-b6a5-2e8956c54828" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6ddd6b3f-e7c1-4e62-a88f-007ffc53a256" xlink:to="loc_us-gaap_ProfitLoss_d1f4cb3a-abda-41cc-b6a5-2e8956c54828" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_a4b66fd1-36bd-4db4-800e-805fd40fc044" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6ddd6b3f-e7c1-4e62-a88f-007ffc53a256" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_a4b66fd1-36bd-4db4-800e-805fd40fc044" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_06e9db94-980a-4a3c-8031-bc668a8d6d96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_0f5da7f1-c082-41c6-bb98-655cf74e40e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_06e9db94-980a-4a3c-8031-bc668a8d6d96" xlink:to="loc_us-gaap_CostsAndExpenses_0f5da7f1-c082-41c6-bb98-655cf74e40e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_f03b2ce9-d37d-473b-9ee9-26e60bb03789" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_06e9db94-980a-4a3c-8031-bc668a8d6d96" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_f03b2ce9-d37d-473b-9ee9-26e60bb03789" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_e56f5668-e1ac-4902-80ac-d462fbfe46a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_e9d7f53f-e954-4246-b02f-39fb19c23a3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer_e56f5668-e1ac-4902-80ac-d462fbfe46a3" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_e9d7f53f-e954-4246-b02f-39fb19c23a3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseInterestIncomeLeaseReceivable_d7d99a7e-ccb6-4111-8fdc-61e5ca559e4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseInterestIncomeLeaseReceivable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer_e56f5668-e1ac-4902-80ac-d462fbfe46a3" xlink:to="loc_us-gaap_SalesTypeLeaseInterestIncomeLeaseReceivable_d7d99a7e-ccb6-4111-8fdc-61e5ca559e4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansCommercialRealEstate_81c2a344-97e6-4b09-b7a2-4cd9e0f7ffaf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndFeeIncomeLoansCommercialRealEstate"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer_e56f5668-e1ac-4902-80ac-d462fbfe46a3" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansCommercialRealEstate_81c2a344-97e6-4b09-b7a2-4cd9e0f7ffaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansRealEstateConstruction_090b11b5-079c-4696-882a-d2fee33e6d10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndFeeIncomeLoansRealEstateConstruction"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer_e56f5668-e1ac-4902-80ac-d462fbfe46a3" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansRealEstateConstruction_090b11b5-079c-4696-882a-d2fee33e6d10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f87f1f8-31ec-4f18-a0eb-de39a13cdeaf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_a381762f-525e-49ff-b648-a38ddd4279cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f87f1f8-31ec-4f18-a0eb-de39a13cdeaf" xlink:to="loc_us-gaap_OperatingIncomeLoss_a381762f-525e-49ff-b648-a38ddd4279cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_f74f995c-0322-44f8-8942-7c2a4fafb2fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5f87f1f8-31ec-4f18-a0eb-de39a13cdeaf" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_f74f995c-0322-44f8-8942-7c2a4fafb2fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_3cc3fe97-8b9d-4c8f-a4b0-ba468da71c2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f50b844e-5110-4067-8fde-472579ec67ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_3cc3fe97-8b9d-4c8f-a4b0-ba468da71c2f" xlink:to="loc_us-gaap_ProfitLoss_f50b844e-5110-4067-8fde-472579ec67ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_8d17964e-0f28-4db3-a1f3-ba091e5aa2b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_3cc3fe97-8b9d-4c8f-a4b0-ba468da71c2f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_8d17964e-0f28-4db3-a1f3-ba091e5aa2b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_fefb55f7-a376-4d81-9c58-9dc7dbf811b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_3cc3fe97-8b9d-4c8f-a4b0-ba468da71c2f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_fefb55f7-a376-4d81-9c58-9dc7dbf811b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_8aa2c026-64cd-43d4-b961-689a4f59d7e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_8aa2c026-64cd-43d4-b961-689a4f59d7e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_6f20d94c-6073-498d-898b-4eb4abafa14e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_6f20d94c-6073-498d-898b-4eb4abafa14e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_a4cac306-5798-4e74-a075-4639d19558f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:to="loc_us-gaap_Depreciation_a4cac306-5798-4e74-a075-4639d19558f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_LandRightsandGroundLeaseExpense_c1988b7f-4959-435b-94cf-07680444979e" xlink:href="glpi-20250930.xsd#glpi_LandRightsandGroundLeaseExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:to="loc_glpi_LandRightsandGroundLeaseExpense_c1988b7f-4959-435b-94cf-07680444979e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_d92e17ab-24af-41a9-86a4-ce524ceb6e9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_5a649ed6-02d2-43b5-928d-f92af474c0a9" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_d92e17ab-24af-41a9-86a4-ce524ceb6e9b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="glpi-20250930.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForCapitalImprovements_3f50edf7-5c92-4dab-b1a1-47403b0e4181" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForCapitalImprovements"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_PaymentsForCapitalImprovements_3f50edf7-5c92-4dab-b1a1-47403b0e4181" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireOtherRealEstate_d8a7d7aa-47eb-450f-8f8f-7cee3a595f79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireOtherRealEstate"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_PaymentsToAcquireOtherRealEstate_d8a7d7aa-47eb-450f-8f8f-7cee3a595f79" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_09165763-02c0-4fef-a651-343e055fa7d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_09165763-02c0-4fef-a651-343e055fa7d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_PaymentsForOriginationOfRealEstateLoans_a37667a9-782d-474d-b038-c0318048e7ab" xlink:href="glpi-20250930.xsd#glpi_PaymentsForOriginationOfRealEstateLoans"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_glpi_PaymentsForOriginationOfRealEstateLoans_a37667a9-782d-474d-b038-c0318048e7ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_PaymentsForInvestmentInLeases_f433dcfd-f8f9-46ac-bf5b-73646309252b" xlink:href="glpi-20250930.xsd#glpi_PaymentsForInvestmentInLeases"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_glpi_PaymentsForInvestmentInLeases_f433dcfd-f8f9-46ac-bf5b-73646309252b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_0c48e53b-ce08-4e0b-a93b-3485e35daa6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireHeldToMaturitySecurities"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_0c48e53b-ce08-4e0b-a93b-3485e35daa6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_5e7202ab-c731-44ac-a5f9-c6eb69a13604" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_5e7202ab-c731-44ac-a5f9-c6eb69a13604" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities_3c1fa654-5a22-4fb0-9c0a-08e880eabc1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_13d4fdc3-8ee5-4dcd-9b2c-eabf87bb1fe2" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities_3c1fa654-5a22-4fb0-9c0a-08e880eabc1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f7d7d6e6-9cb5-45a8-b76a-6dec0e3de585" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_ProfitLoss_f7d7d6e6-9cb5-45a8-b76a-6dec0e3de585" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_5f3e26fa-2519-47f8-b437-9b635288c6b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_5f3e26fa-2519-47f8-b437-9b635288c6b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_323817ca-c0ad-430e-9cef-900a97297479" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_323817ca-c0ad-430e-9cef-900a97297479" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDeferredHedgeGains_0ab88706-c93d-4378-88ca-a7ff2ce4b0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfDeferredHedgeGains"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_AmortizationOfDeferredHedgeGains_0ab88706-c93d-4378-88ca-a7ff2ce4b0d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_InterestIncomePaidinkind_821908bc-ca2f-459a-ab17-1d7ab7d662b8" xlink:href="glpi-20250930.xsd#glpi_InterestIncomePaidinkind"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_glpi_InterestIncomePaidinkind_821908bc-ca2f-459a-ab17-1d7ab7d662b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_15ca66da-23ba-4dcc-89e2-a506bc1fb92f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_15ca66da-23ba-4dcc-89e2-a506bc1fb92f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_FinanceLeaseLiabilityNonCashAdjustment_35481b87-613e-4cbb-b0c9-d97485c2cc0c" xlink:href="glpi-20250930.xsd#glpi_FinanceLeaseLiabilityNonCashAdjustment"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_glpi_FinanceLeaseLiabilityNonCashAdjustment_35481b87-613e-4cbb-b0c9-d97485c2cc0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_a373b30a-6b03-421e-8e48-d4039b95520f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_a373b30a-6b03-421e-8e48-d4039b95520f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_3bc84de0-06d3-48c7-b2c7-1c1c8b3abe2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_ShareBasedCompensation_3bc84de0-06d3-48c7-b2c7-1c1c8b3abe2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StraightLineRentAdjustments_09f69f36-f3fc-4175-9d1a-b323902ea5dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StraightLineRentAdjustments"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_StraightLineRentAdjustments_09f69f36-f3fc-4175-9d1a-b323902ea5dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_f18582ce-bdd9-4117-af4d-88066d1cafc7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_f18582ce-bdd9-4117-af4d-88066d1cafc7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_0a96766a-ab3a-4724-9148-0d89c746438e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_0a96766a-ab3a-4724-9148-0d89c746438e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_ProceedsFromHedgeOperatingActivities_dc752ba0-00e0-41dd-82fc-134f9edc9d65" xlink:href="glpi-20250930.xsd#glpi_ProceedsFromHedgeOperatingActivities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_glpi_ProceedsFromHedgeOperatingActivities_dc752ba0-00e0-41dd-82fc-134f9edc9d65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_69128107-e909-4326-a695-3ae64d87a38f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_69128107-e909-4326-a695-3ae64d87a38f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_99c11302-7837-4d9e-be70-4d6d455de7cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_99c11302-7837-4d9e-be70-4d6d455de7cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_4b00e172-014e-4522-bf4c-7af0159b760c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_4b00e172-014e-4522-bf4c-7af0159b760c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_17b20723-23d4-4242-8d8b-e5f1c4dcb5c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_17b20723-23d4-4242-8d8b-e5f1c4dcb5c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_715d43d0-7746-4d9e-828f-372de1d43fa1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_38c6b9a0-f5d8-407f-94cd-8b74f96dbc41" xlink:to="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_715d43d0-7746-4d9e-828f-372de1d43fa1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations_491cf86c-5c9e-4993-93e4-8287d6a4603d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8c2b6dae-0fa8-42c4-b3da-ae9a0b35e57a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations_491cf86c-5c9e-4993-93e4-8287d6a4603d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8c2b6dae-0fa8-42c4-b3da-ae9a0b35e57a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_93cd36c6-2159-471b-a010-0b6f1a29414b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations_491cf86c-5c9e-4993-93e4-8287d6a4603d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_93cd36c6-2159-471b-a010-0b6f1a29414b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6ae9144-7322-405e-9587-c2b607ccd759" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations_491cf86c-5c9e-4993-93e4-8287d6a4603d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6ae9144-7322-405e-9587-c2b607ccd759" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_03c30902-d80a-4a49-869c-83f964705be7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_us-gaap_PaymentsOfDividends_03c30902-d80a-4a49-869c-83f964705be7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_bbc82563-2a46-4ba2-8a1d-91d0e7ad7d2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToMinorityShareholders"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_bbc82563-2a46-4ba2-8a1d-91d0e7ad7d2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_ProceedsRepaymentsRelatedtoTaxWithholdingOnRestrictedStockAwardVestingsNetofProceedsfromExerciseofOptions_07d7c38d-b572-498b-822a-dadc7bba13f9" xlink:href="glpi-20250930.xsd#glpi_ProceedsRepaymentsRelatedtoTaxWithholdingOnRestrictedStockAwardVestingsNetofProceedsfromExerciseofOptions"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_glpi_ProceedsRepaymentsRelatedtoTaxWithholdingOnRestrictedStockAwardVestingsNetofProceedsfromExerciseofOptions_07d7c38d-b572-498b-822a-dadc7bba13f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_ATMProgramofferingcosts_19fa5432-dc39-47a4-9a52-1bdd702d0b26" xlink:href="glpi-20250930.xsd#glpi_ATMProgramofferingcosts"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_glpi_ATMProgramofferingcosts_19fa5432-dc39-47a4-9a52-1bdd702d0b26" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_1ad7bba0-4c1b-4ffd-b0cd-1d479f962924" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_1ad7bba0-4c1b-4ffd-b0cd-1d479f962924" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_1dfcc5ba-1ee8-4c20-a701-1df163f1d4f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_1dfcc5ba-1ee8-4c20-a701-1df163f1d4f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_e30cca46-81b9-40a2-b478-5c19a0a99867" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_e30cca46-81b9-40a2-b478-5c19a0a99867" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_PaymentsofPremiumandRelatedCostsonTenderofSeniorUnsecuredNotes_9a67dcfd-3d3b-4284-aaf7-72309c66e500" xlink:href="glpi-20250930.xsd#glpi_PaymentsofPremiumandRelatedCostsonTenderofSeniorUnsecuredNotes"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2bf7c825-b726-45f7-94ba-d9082a80ad60" xlink:to="loc_glpi_PaymentsofPremiumandRelatedCostsonTenderofSeniorUnsecuredNotes_9a67dcfd-3d3b-4284-aaf7-72309c66e500" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetSummaryofCompanysInvestmentinLeasesDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#InvestmentinleasesfinancingreceivablesnetSummaryofCompanysInvestmentinLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetSummaryofCompanysInvestmentinLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_48205658-9159-4cfd-aa26-2a492817993e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DirectFinancingLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_304220ac-62e2-4165-9c09-16ef0bdfbf0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_48205658-9159-4cfd-aa26-2a492817993e" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_304220ac-62e2-4165-9c09-16ef0bdfbf0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLease_48498033-b583-4f82-95e4-6573621022b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DirectFinancingLeaseNetInvestmentInLease"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_48205658-9159-4cfd-aa26-2a492817993e" xlink:to="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLease_48498033-b583-4f82-95e4-6573621022b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_FinancingReceivableContractWithCustomerLiability_5a10e0bb-6153-4ecf-b68c-3c6c2e3d0976" xlink:href="glpi-20250930.xsd#glpi_FinancingReceivableContractWithCustomerLiability"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DirectFinancingLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_48205658-9159-4cfd-aa26-2a492817993e" xlink:to="loc_glpi_FinancingReceivableContractWithCustomerLiability_5a10e0bb-6153-4ecf-b68c-3c6c2e3d0976" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetMaturityDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#InvestmentinleasesfinancingreceivablesnetMaturityDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_3a8c5d05-c7c6-49b6-9ed0-f397a3b65125" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_3a8c5d05-c7c6-49b6-9ed0-f397a3b65125" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_81796119-8fb9-4fd9-994a-d4852bc945c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_81796119-8fb9-4fd9-994a-d4852bc945c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_8a70d30d-e2ce-44ca-b59c-278957500536" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_8a70d30d-e2ce-44ca-b59c-278957500536" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_61903957-bfca-4c62-a980-b0dfe9a66b25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_61903957-bfca-4c62-a980-b0dfe9a66b25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_b823c45a-4f82-42e6-b833-30b200f41998" xlink:href="glpi-20250930.xsd#glpi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_glpi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_b823c45a-4f82-42e6-b833-30b200f41998" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_29973e73-c59f-45f2-841b-e1366daf78b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_3e10ada1-c66d-43e5-a760-e2075f4b5b7c" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_29973e73-c59f-45f2-841b-e1366daf78b2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetSummaryofAmortizedCostBasisofCompanysInvestmentInLeasesbyYearofOriginationDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#InvestmentinleasesfinancingreceivablesnetSummaryofAmortizedCostBasisofCompanysInvestmentInLeasesbyYearofOriginationDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/InvestmentinleasesfinancingreceivablesnetSummaryofAmortizedCostBasisofCompanysInvestmentInLeasesbyYearofOriginationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_5c522113-25fa-43b6-95ea-3deff653455b" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAmortizedCosts"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginateThreeYearsPriorToCurrentFiscalYear_7f33603c-7e8c-4c0b-8b2c-f02b444ad62b" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginateThreeYearsPriorToCurrentFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_5c522113-25fa-43b6-95ea-3deff653455b" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginateThreeYearsPriorToCurrentFiscalYear_7f33603c-7e8c-4c0b-8b2c-f02b444ad62b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss_c7465adb-6e2a-4954-8114-16f27470c33b" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_5c522113-25fa-43b6-95ea-3deff653455b" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearFourOriginatedThreeFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss_c7465adb-6e2a-4954-8114-16f27470c33b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_deb5c820-b47b-4588-945b-64659180491c" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAmortizedCosts"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss_203a7ecc-0258-4395-9a26-193e03d62160" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_deb5c820-b47b-4588-945b-64659180491c" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAllowanceForCreditLoss_203a7ecc-0258-4395-9a26-193e03d62160" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginateTwoYearsPriorToCurrentFiscalYear_6059435a-94be-460b-848b-826280bb7608" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginateTwoYearsPriorToCurrentFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginatedTwoFiscalYearsBeforeCurrentFiscalYearAmortizedCosts_deb5c820-b47b-4588-945b-64659180491c" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearThreeOriginateTwoYearsPriorToCurrentFiscalYear_6059435a-94be-460b-848b-826280bb7608" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableAmortizedCost_b425b8e3-5f65-430f-a2d9-a8adb3ff9ab4" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableAmortizedCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableAllowanceForCreditLoss_1487d7d9-7f5c-4abf-9607-a0112cfc99a7" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableAllowanceForCreditLoss"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableAmortizedCost_b425b8e3-5f65-430f-a2d9-a8adb3ff9ab4" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableAllowanceForCreditLoss_1487d7d9-7f5c-4abf-9607-a0112cfc99a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableBeforeAllowanceForCreditLoss_23a5a972-06ad-4480-b62b-0da98ab82b82" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableBeforeAllowanceForCreditLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableAmortizedCost_b425b8e3-5f65-430f-a2d9-a8adb3ff9ab4" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableBeforeAllowanceForCreditLoss_23a5a972-06ad-4480-b62b-0da98ab82b82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAmortizedCost_612f4064-27e1-428a-bd58-c2f3458c3871" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAmortizedCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAllowanceForCreditLoss_44e41235-ac8b-4bf2-a474-d1e9d7fb25d0" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAllowanceForCreditLoss"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAmortizedCost_612f4064-27e1-428a-bd58-c2f3458c3871" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAllowanceForCreditLoss_44e41235-ac8b-4bf2-a474-d1e9d7fb25d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_cd4398cf-9dc0-42d8-8981-939047750546" xlink:href="glpi-20250930.xsd#glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearAmortizedCost_612f4064-27e1-428a-bd58-c2f3458c3871" xlink:to="loc_glpi_NetInvestmentInLeaseAndFinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_cd4398cf-9dc0-42d8-8981-939047750546" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/RealEstateInvestmentsDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#RealEstateInvestmentsDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/RealEstateInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_a702260a-41b8-473e-834a-084301e3eb91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b467f860-d416-4964-a3dd-04e952b1b526" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyAtCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNet_a702260a-41b8-473e-834a-084301e3eb91" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b467f860-d416-4964-a3dd-04e952b1b526" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_c7963ec0-68a2-4ad0-a934-eacae4edd8e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNet_a702260a-41b8-473e-834a-084301e3eb91" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_c7963ec0-68a2-4ad0-a934-eacae4edd8e4" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/RealEstateLoansnetDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#RealEstateLoansnetDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/RealEstateLoansnetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_glpi_RealEstateLoansNet_015d1150-3a73-4be1-8ef3-3302920b2e87" xlink:href="glpi-20250930.xsd#glpi_RealEstateLoansNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_8016c766-42e7-4035-9d6b-8d7d63bfa65d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_RealEstateLoansNet_015d1150-3a73-4be1-8ef3-3302920b2e87" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_8016c766-42e7-4035-9d6b-8d7d63bfa65d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_RealEstateLoans_0e6c0c66-2186-4e7e-a60c-b26657d2ce92" xlink:href="glpi-20250930.xsd#glpi_RealEstateLoans"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_RealEstateLoansNet_015d1150-3a73-4be1-8ef3-3302920b2e87" xlink:to="loc_glpi_RealEstateLoans_0e6c0c66-2186-4e7e-a60c-b26657d2ce92" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_44e0a3a5-4167-4856-89b4-845de3bcafde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_44e0a3a5-4167-4856-89b4-845de3bcafde" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_84203629-025a-4cf9-b7db-73171c9ad166" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_84203629-025a-4cf9-b7db-73171c9ad166" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_6049bf68-d8a4-41a9-8bf7-c1af05c8f6c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_6049bf68-d8a4-41a9-8bf7-c1af05c8f6c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_648b160c-6f74-4f5e-be94-6da64af19322" xlink:href="glpi-20250930.xsd#glpi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_glpi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_648b160c-6f74-4f5e-be94-6da64af19322" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_97440d64-b9ab-42f0-bd20-2eaf5942c6e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_97440d64-b9ab-42f0-bd20-2eaf5942c6e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_08efd288-9b7e-4372-96d9-5f29838d9687" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8ecb091e-7242-4e55-86d3-4062b2aac73b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_08efd288-9b7e-4372-96d9-5f29838d9687" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails_1" xlink:type="simple" xlink:href="glpi-20250930.xsd#LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails_1"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLIabilitiesLandRightsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_582aeb9d-02a3-4dd2-8dd9-6ecb45c4fabb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e525ee3e-7355-4d45-b234-04bb1ebdee28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_582aeb9d-02a3-4dd2-8dd9-6ecb45c4fabb" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e525ee3e-7355-4d45-b234-04bb1ebdee28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7b9efdd2-99aa-48df-858f-23dc8248b556" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_582aeb9d-02a3-4dd2-8dd9-6ecb45c4fabb" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7b9efdd2-99aa-48df-858f-23dc8248b556" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_410fd235-d800-4a8c-a9a3-f93f24b33f68" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_410fd235-d800-4a8c-a9a3-f93f24b33f68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_217e1380-e173-4b2e-a68c-93e60f0c5c1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_217e1380-e173-4b2e-a68c-93e60f0c5c1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_42ae39a8-a7ec-429d-87fd-a394921f857d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_42ae39a8-a7ec-429d-87fd-a394921f857d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_45331476-f8b5-428c-b45b-43b02c6a1bf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_45331476-f8b5-428c-b45b-43b02c6a1bf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_3a8e83d8-2f73-4990-bbae-e69e3e06bba6" xlink:href="glpi-20250930.xsd#glpi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_glpi_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_3a8e83d8-2f73-4990-bbae-e69e3e06bba6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_6dedd1f6-48fa-4321-8273-3b2f8ebb3d63" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_709a1938-d343-436a-b2dc-094e0e9610cc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_6dedd1f6-48fa-4321-8273-3b2f8ebb3d63" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails_1" xlink:type="simple" xlink:href="glpi-20250930.xsd#LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails_1"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesLeaseMaturityScheduleDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0271fe7a-a624-40ab-9ec9-57403d1809aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_5b4d683e-48e8-43d8-8de2-875848469b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0271fe7a-a624-40ab-9ec9-57403d1809aa" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_5b4d683e-48e8-43d8-8de2-875848469b6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_bc12e4f5-148e-4478-a0a9-3e57d7810567" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_0271fe7a-a624-40ab-9ec9-57403d1809aa" xlink:to="loc_us-gaap_OperatingLeaseLiability_bc12e4f5-148e-4478-a0a9-3e57d7810567" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesComponentsofLeaseExpenseDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesComponentsofLeaseExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LeaseAssetsandLeaseLiabilitiesLeaseAssetsandLeaseLiabilitiesComponentsofLeaseExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_dadfd912-8acf-4328-b80f-8d3d2481f818" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_26bf729f-6ba3-4fad-a8eb-6437bc11e25e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_dadfd912-8acf-4328-b80f-8d3d2481f818" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_26bf729f-6ba3-4fad-a8eb-6437bc11e25e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LongtermDebtScheduleofDebtDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#LongtermDebtScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LongtermDebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_3992fc99-566c-42af-9c2b-ec8510f3ccff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_LongTermDebtGrossandLeaseObligations_11f75998-cad3-457b-97e4-a1b08e48920e" xlink:href="glpi-20250930.xsd#glpi_LongTermDebtGrossandLeaseObligations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_3992fc99-566c-42af-9c2b-ec8510f3ccff" xlink:to="loc_glpi_LongTermDebtGrossandLeaseObligations_11f75998-cad3-457b-97e4-a1b08e48920e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_72646494-0aaa-412b-8d5a-f753c578d553" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_3992fc99-566c-42af-9c2b-ec8510f3ccff" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_72646494-0aaa-412b-8d5a-f753c578d553" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/LongtermDebtMaturitiesofLongTermDebtDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#LongtermDebtMaturitiesofLongTermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/LongtermDebtMaturitiesofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:href="glpi-20250930.xsd#glpi_LongTermDebtGrossandLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_LongTermDebtMaturityAfterYearFour_21d30e4b-96df-4bc0-a036-28a5c94ace94" xlink:href="glpi-20250930.xsd#glpi_LongTermDebtMaturityAfterYearFour"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_glpi_LongTermDebtMaturityAfterYearFour_21d30e4b-96df-4bc0-a036-28a5c94ace94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_a692e6ce-8543-4f10-8598-09fcb08a0dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_a692e6ce-8543-4f10-8598-09fcb08a0dcf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_31db405b-6993-407e-b911-d845fc2c2c13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_31db405b-6993-407e-b911-d845fc2c2c13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_82593d20-b448-4566-a580-4d8165df2c10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_82593d20-b448-4566-a580-4d8165df2c10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_da29e746-9137-4777-b9fb-286553c5baa7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_da29e746-9137-4777-b9fb-286553c5baa7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_51308bd5-784a-4ed2-9f3e-e85141d02d19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_LongTermDebtGrossandLeaseObligations_4cdb6938-17e9-4a48-ab18-28b0ac2f3061" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_51308bd5-784a-4ed2-9f3e-e85141d02d19" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/RevenueRecognitionRentalIncomeTableDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#RevenueRecognitionRentalIncomeTableDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/RevenueRecognitionRentalIncomeTableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_bc551642-bdee-4692-931d-6a75bcfc3675" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_OperatingLeaseCashRentReceived_40d89f38-2c36-4003-a43c-3964ee6446fe" xlink:href="glpi-20250930.xsd#glpi_OperatingLeaseCashRentReceived"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bc551642-bdee-4692-931d-6a75bcfc3675" xlink:to="loc_glpi_OperatingLeaseCashRentReceived_40d89f38-2c36-4003-a43c-3964ee6446fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StraightLineRentAdjustments_ad8608f9-ce81-41dd-a1d0-99037e4eaf31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StraightLineRentAdjustments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bc551642-bdee-4692-931d-6a75bcfc3675" xlink:to="loc_us-gaap_StraightLineRentAdjustments_ad8608f9-ce81-41dd-a1d0-99037e4eaf31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_glpi_OperatingLeaseGroundLeaseIncome_b966a1ae-aaaf-4525-8432-db04f1c79207" xlink:href="glpi-20250930.xsd#glpi_OperatingLeaseGroundLeaseIncome"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bc551642-bdee-4692-931d-6a75bcfc3675" xlink:to="loc_glpi_OperatingLeaseGroundLeaseIncome_b966a1ae-aaaf-4525-8432-db04f1c79207" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_f06294c8-a2b5-4304-849c-2d010b535b15" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInFinanceReceivables"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bc551642-bdee-4692-931d-6a75bcfc3675" xlink:to="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_f06294c8-a2b5-4304-849c-2d010b535b15" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/EarningsperShareEarningsperShareEPSCalculationsDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#EarningsperShareEarningsperShareEPSCalculationsDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/EarningsperShareEarningsperShareEPSCalculationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_67a5fa67-67e2-4b90-be99-8c4ff30f84dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_48249a68-1a7c-4c12-a6ff-e8c764a932cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_67a5fa67-67e2-4b90-be99-8c4ff30f84dc" xlink:to="loc_us-gaap_NetIncomeLoss_48249a68-1a7c-4c12-a6ff-e8c764a932cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_e06051d9-eca6-402c-8209-5d96eec9fd6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_67a5fa67-67e2-4b90-be99-8c4ff30f84dc" xlink:to="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_e06051d9-eca6-402c-8209-5d96eec9fd6b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.glpropinc.com/role/AcquisitionsDetails" xlink:type="simple" xlink:href="glpi-20250930.xsd#AcquisitionsDetails"/>
  <link:calculationLink xlink:role="http://www.glpropinc.com/role/AcquisitionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_glpi_BusinessCombinationsRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_4a36ed17-9d61-4bd5-80a3-aeb25e050066" xlink:href="glpi-20250930.xsd#glpi_BusinessCombinationsRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DirectFinancingLeaseLeaseReceivable_441394ad-8a0a-4105-8b1a-5c58f8609a32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DirectFinancingLeaseLeaseReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_BusinessCombinationsRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_4a36ed17-9d61-4bd5-80a3-aeb25e050066" xlink:to="loc_us-gaap_DirectFinancingLeaseLeaseReceivable_441394ad-8a0a-4105-8b1a-5c58f8609a32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_5182a82d-784f-4a11-8c0f-18cc0be203db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_glpi_BusinessCombinationsRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_4a36ed17-9d61-4bd5-80a3-aeb25e050066" xlink:to="loc_us-gaap_FinanceLeaseLiability_5182a82d-784f-4a11-8c0f-18cc0be203db" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
