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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:856c7782-d5e1-4349-9048-3595a98c7521,g:5c2866f6-d739-46e4-ba5c-e2094df1cad6-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://iairgroup.com/role/StatementofcomprehensiveincomeprofitorlossbyfunctionofexpenseStatement" xlink:type="simple" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#StatementofcomprehensiveincomeprofitorlossbyfunctionofexpenseStatement"/>
  <link:calculationLink xlink:role="http://iairgroup.com/role/StatementofcomprehensiveincomeprofitorlossbyfunctionofexpenseStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_6acce1a9-b2aa-4ade-bc5e-bbb06761df2a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_6acce1a9-b2aa-4ade-bc5e-bbb06761df2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment_ead3a0c7-5f30-4d2f-9e09-0720456a7193" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_GainsLossesOnDisposalsOfPropertyPlantAndEquipment_ead3a0c7-5f30-4d2f-9e09-0720456a7193" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FuelExpense_1bb0f23b-9903-484f-8b9b-e44c68c6fcb2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FuelExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_FuelExpense_1bb0f23b-9903-484f-8b9b-e44c68c6fcb2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense_8dcd052d-d459-476e-b9e7-04d1cbcd3d24" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_EmployeeBenefitsExpense_8dcd052d-d459-476e-b9e7-04d1cbcd3d24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_HandlingCateringAndOtherOperatingCosts_f934cdd1-8e17-402a-8983-4778739dd4ec" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_HandlingCateringAndOtherOperatingCosts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_iag_HandlingCateringAndOtherOperatingCosts_f934cdd1-8e17-402a-8983-4778739dd4ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransportationExpense_79c4f0e1-d57d-4804-a0a8-324f1db52d70" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TransportationExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_TransportationExpense_79c4f0e1-d57d-4804-a0a8-324f1db52d70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepairsAndMaintenanceExpense_67a7ecb1-195b-4b30-a6e4-d815d9e697e7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepairsAndMaintenanceExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_RepairsAndMaintenanceExpense_67a7ecb1-195b-4b30-a6e4-d815d9e697e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_39bf6196-6b6a-458b-99f4-739c1bf66bb8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_39bf6196-6b6a-458b-99f4-739c1bf66bb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SellingExpense_1a13a802-a5b2-4758-a9cb-35b3cfd65f2c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SellingExpense"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_ifrs-full_SellingExpense_1a13a802-a5b2-4758-a9cb-35b3cfd65f2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_PropertyITAndOtherCosts_9fe898f6-cd53-431d-b27f-6b09de512bba" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_PropertyITAndOtherCosts"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OperatingExpense_1a8455fb-ace8-44eb-8db8-436295f37fd2" xlink:to="loc_iag_PropertyITAndOtherCosts_9fe898f6-cd53-431d-b27f-6b09de512bba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_TotalNetNonOperatingCosts"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_OtherNonOperatingCreditsCharges_ec0b0a08-a806-4d07-a2e0-2c55b7cd0aa0" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_OtherNonOperatingCreditsCharges"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_iag_OtherNonOperatingCreditsCharges_ec0b0a08-a806-4d07-a2e0-2c55b7cd0aa0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceCosts_fe1e51fd-1f6d-4687-a9aa-3205201297fe" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_ifrs-full_FinanceCosts_fe1e51fd-1f6d-4687-a9aa-3205201297fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceIncome_bb9140ee-0e59-4796-b085-91e9118fab91" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncome"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_ifrs-full_FinanceIncome_bb9140ee-0e59-4796-b085-91e9118fab91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_NetFinancingCreditChargeRelatingToPensions_b2eacb93-d084-47b5-9509-0082e5c77ecc" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_NetFinancingCreditChargeRelatingToPensions"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_iag_NetFinancingCreditChargeRelatingToPensions_b2eacb93-d084-47b5-9509-0082e5c77ecc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_NetCurrencyRetranslationCreditsCharges_9656c62c-21dc-4554-b16e-03228d42e7ca" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_NetCurrencyRetranslationCreditsCharges"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_iag_NetCurrencyRetranslationCreditsCharges_9656c62c-21dc-4554-b16e-03228d42e7ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_3bb995fb-7b25-41b2-a751-25e4807accf8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_TotalNetNonOperatingCosts_128ed73b-288b-43a1-b1ff-73e548bb4709" xlink:to="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_3bb995fb-7b25-41b2-a751-25e4807accf8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_eeedeafa-2144-42d9-a5a6-697d32754b29" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Revenue_83a607c7-af50-4315-8217-d7deba2ffc5d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities_eeedeafa-2144-42d9-a5a6-697d32754b29" xlink:to="loc_ifrs-full_Revenue_83a607c7-af50-4315-8217-d7deba2ffc5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense_948554f8-5013-4565-ad2f-15aeb6005559" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities_eeedeafa-2144-42d9-a5a6-697d32754b29" xlink:to="loc_ifrs-full_OperatingExpense_948554f8-5013-4565-ad2f-15aeb6005559" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_9b6717b4-cbee-42ca-b54d-15b02b7d5b8e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_065741ea-a02c-4277-8972-892572f669c9" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_9b6717b4-cbee-42ca-b54d-15b02b7d5b8e" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_065741ea-a02c-4277-8972-892572f669c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_7043e7f1-2722-47ea-9f1f-9360f2bced6d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLoss_9b6717b4-cbee-42ca-b54d-15b02b7d5b8e" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_7043e7f1-2722-47ea-9f1f-9360f2bced6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_5098b2ea-dc33-41ff-9e25-6ebfa99d5149" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_TotalNetNonOperatingCosts_395c944a-ff4f-4bd4-925f-b6e5ef6c73c8" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_TotalNetNonOperatingCosts"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossBeforeTax_5098b2ea-dc33-41ff-9e25-6ebfa99d5149" xlink:to="loc_iag_TotalNetNonOperatingCosts_395c944a-ff4f-4bd4-925f-b6e5ef6c73c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_ca9f9962-95ad-492a-9043-7e8345d7761b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ProfitLossBeforeTax_5098b2ea-dc33-41ff-9e25-6ebfa99d5149" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_ca9f9962-95ad-492a-9043-7e8345d7761b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Revenue_573ca2b8-33d0-4599-82a7-1322923a5681" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Revenue"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromRenderingOfPassengerTransportServices_4f78b006-e12c-42f2-9367-b574f4058bc0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromRenderingOfPassengerTransportServices"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Revenue_573ca2b8-33d0-4599-82a7-1322923a5681" xlink:to="loc_ifrs-full_RevenueFromRenderingOfPassengerTransportServices_4f78b006-e12c-42f2-9367-b574f4058bc0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRevenue_7e6eb201-6474-46ad-a586-43a654cdf97c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherRevenue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Revenue_573ca2b8-33d0-4599-82a7-1322923a5681" xlink:to="loc_ifrs-full_OtherRevenue_7e6eb201-6474-46ad-a586-43a654cdf97c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromRenderingOfCargoAndMailTransportServices_63d84156-c5d3-45cf-aa86-fc2f0f8cd30d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueFromRenderingOfCargoAndMailTransportServices"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Revenue_573ca2b8-33d0-4599-82a7-1322923a5681" xlink:to="loc_ifrs-full_RevenueFromRenderingOfCargoAndMailTransportServices_63d84156-c5d3-45cf-aa86-fc2f0f8cd30d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://iairgroup.com/role/StatementofcomprehensiveincomeOCIcomponentspresentednetoftaxStatement" xlink:type="simple" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#StatementofcomprehensiveincomeOCIcomponentspresentednetoftaxStatement"/>
  <link:calculationLink xlink:role="http://iairgroup.com/role/StatementofcomprehensiveincomeOCIcomponentspresentednetoftaxStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_e439ea6e-9a9a-49fc-b105-38274424b893" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_e439ea6e-9a9a-49fc-b105-38274424b893" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_RemeasurementsOfLongTermEmployeeRelatedProvisions_80128dea-f2f6-4f5e-bcec-e029243dfaf2" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_RemeasurementsOfLongTermEmployeeRelatedProvisions"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_iag_RemeasurementsOfLongTermEmployeeRelatedProvisions_80128dea-f2f6-4f5e-bcec-e029243dfaf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_c2898830-8552-47ab-9dda-e47a2a360e00" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_c2898830-8552-47ab-9dda-e47a2a360e00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_4e417afe-145e-4b99-82fe-f19e47e58cfe" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_4e417afe-145e-4b99-82fe-f19e47e58cfe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_c75f31ef-2460-4bac-a584-a17288132d9c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_c75f31ef-2460-4bac-a584-a17288132d9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_6ef151f0-ce60-41b2-8b15-1d634ba26af0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_6ef151f0-ce60-41b2-8b15-1d634ba26af0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInValueOfTimeValueOfOptions_1653303b-4032-4a52-be62-37af200ae4ba" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInValueOfTimeValueOfOptions"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInValueOfTimeValueOfOptions_1653303b-4032-4a52-be62-37af200ae4ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_f8fd06ec-7c98-4db7-b16a-2fe381cb5f7e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_f8fd06ec-7c98-4db7-b16a-2fe381cb5f7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_CostOfHedgingReclassifiedAndReportedInNetProfit_03c6b7ad-527e-42d8-b5c6-13ec4e353b2c" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_CostOfHedgingReclassifiedAndReportedInNetProfit"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_OtherComprehensiveIncome_38de3eb2-c609-4aa4-9343-294c308ddaa9" xlink:to="loc_iag_CostOfHedgingReclassifiedAndReportedInNetProfit_03c6b7ad-527e-42d8-b5c6-13ec4e353b2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome_ce8676af-f790-41de-9021-71e7a574cd8c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_b1c26228-e4fb-4794-a88c-e559d296e89b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome_ce8676af-f790-41de-9021-71e7a574cd8c" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_b1c26228-e4fb-4794-a88c-e559d296e89b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss_07671c6c-27c6-43c1-9f0d-b7a9cc17f6d1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_ComprehensiveIncome_ce8676af-f790-41de-9021-71e7a574cd8c" xlink:to="loc_ifrs-full_ProfitLoss_07671c6c-27c6-43c1-9f0d-b7a9cc17f6d1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://iairgroup.com/role/StatementoffinancialpositioncurrentnoncurrentStatement" xlink:type="simple" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#StatementoffinancialpositioncurrentnoncurrentStatement"/>
  <link:calculationLink xlink:role="http://iairgroup.com/role/StatementoffinancialpositioncurrentnoncurrentStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets_42e0ad19-a7e2-45e7-8dcb-60690735fcac" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets_af08771e-1928-4aaa-9130-b06b32055afc" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets_42e0ad19-a7e2-45e7-8dcb-60690735fcac" xlink:to="loc_ifrs-full_NoncurrentAssets_af08771e-1928-4aaa-9130-b06b32055afc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets_a4a1b545-e787-4b24-90ed-9ceedbd2e1f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Assets_42e0ad19-a7e2-45e7-8dcb-60690735fcac" xlink:to="loc_ifrs-full_CurrentAssets_a4a1b545-e787-4b24-90ed-9ceedbd2e1f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentProvisions_eb88e8ac-88bc-4aba-b447-6478b23d841e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentProvisions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_CurrentProvisions_eb88e8ac-88bc-4aba-b447-6478b23d841e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDeferredIncomeIncludingCurrentContractLiabilities_9f199ae7-7e7a-4d46-bc0f-7b8f9673b715" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDeferredIncomeIncludingCurrentContractLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_CurrentDeferredIncomeIncludingCurrentContractLiabilities_9f199ae7-7e7a-4d46-bc0f-7b8f9673b715" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermBorrowings_8093d528-5b9a-45dc-9c0f-03a0cb4bf2c1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermBorrowings"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_ShorttermBorrowings_8093d528-5b9a-45dc-9c0f-03a0cb4bf2c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_46e77a9f-ea56-47fd-84c9-d46d7677e3a7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_46e77a9f-ea56-47fd-84c9-d46d7677e3a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilities_2a82ecd3-e991-424a-81e1-cfae8e768c60" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_CurrentTaxLiabilities_2a82ecd3-e991-424a-81e1-cfae8e768c60" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables_494fef5f-1f23-4f90-a979-2f0910905afb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentLiabilities_9518be82-8627-42de-8527-e55faa70c6b5" xlink:to="loc_ifrs-full_TradeAndOtherCurrentPayables_494fef5f-1f23-4f90-a979-2f0910905afb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_a6af4b3f-b880-48a6-adef-96baabe3da9a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_a6af4b3f-b880-48a6-adef-96baabe3da9a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentLiabilities_affd97bf-d7a5-4fbe-86f6-283acee53e4b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_OtherNoncurrentLiabilities_affd97bf-d7a5-4fbe-86f6-283acee53e4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentProvisions_b5fc0e82-e192-4dac-9cec-78e3e73329f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentProvisions"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_NoncurrentProvisions_b5fc0e82-e192-4dac-9cec-78e3e73329f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_ec29769e-3e06-46cd-8d8b-6d61a5e5e9bb" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_ec29769e-3e06-46cd-8d8b-6d61a5e5e9bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_28b39ad4-4f17-4609-b012-9f179f570db6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_28b39ad4-4f17-4609-b012-9f179f570db6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDeferredIncomeIncludingNoncurrentContractLiabilities_8ba9cb89-b70c-4d6f-a6bd-5ad9ee876d43" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDeferredIncomeIncludingNoncurrentContractLiabilities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_NoncurrentDeferredIncomeIncludingNoncurrentContractLiabilities_8ba9cb89-b70c-4d6f-a6bd-5ad9ee876d43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LongtermBorrowings_79211f0b-c88c-4dda-95b6-d000384c22c5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentLiabilities_31d410d8-71f8-4dc2-9202-de5aad3dbef8" xlink:to="loc_ifrs-full_LongtermBorrowings_79211f0b-c88c-4dda-95b6-d000384c22c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_395f7dd1-3e7d-4359-a446-febb6beb5562" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_424cb659-3ec0-47b5-8591-3d3d2cfb8a0f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity_395f7dd1-3e7d-4359-a446-febb6beb5562" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent_424cb659-3ec0-47b5-8591-3d3d2cfb8a0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterests_4973c233-337a-48cc-b695-551310752993" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncontrollingInterests"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Equity_395f7dd1-3e7d-4359-a446-febb6beb5562" xlink:to="loc_ifrs-full_NoncontrollingInterests_4973c233-337a-48cc-b695-551310752993" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_a2635479-855d-4b1e-84e4-429c6c933b4f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_a2635479-855d-4b1e-84e4-429c6c933b4f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_81f8f991-3601-43fd-a87b-8da3f5836f14" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod_81f8f991-3601-43fd-a87b-8da3f5836f14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentRecognisedAssetsDefinedBenefitPlan_f2541504-55ff-4037-896d-cb3be6b30f3d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentRecognisedAssetsDefinedBenefitPlan"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_NoncurrentRecognisedAssetsDefinedBenefitPlan_f2541504-55ff-4037-896d-cb3be6b30f3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentAssets_27261f31-516a-4a44-9ee7-870d3b47bec6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherNoncurrentAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_OtherNoncurrentAssets_27261f31-516a-4a44-9ee7-870d3b47bec6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod_f253175f-8133-47a4-91f4-5c0e23481a48" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod_f253175f-8133-47a4-91f4-5c0e23481a48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill_6bea51ca-9787-43ad-9707-115f9677ee6e" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_IntangibleAssetsAndGoodwill_6bea51ca-9787-43ad-9707-115f9677ee6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_170f6ea9-6c37-41e2-a35b-56c77484cf61" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_170f6ea9-6c37-41e2-a35b-56c77484cf61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets_10380fab-d087-48f7-aa11-28906a298a21" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_NoncurrentAssets_a5c283a2-a652-4e04-b94f-d4789e3ec723" xlink:to="loc_ifrs-full_DeferredTaxAssets_10380fab-d087-48f7-aa11-28906a298a21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent_c9ac63af-38e0-417a-90fd-67487b6fb98d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SharePremium_fc38b314-7d28-4ca7-a650-d14f3b6da679" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_SharePremium"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_c9ac63af-38e0-417a-90fd-67487b6fb98d" xlink:to="loc_ifrs-full_SharePremium_fc38b314-7d28-4ca7-a650-d14f3b6da679" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapital_5fb40aab-74c4-4521-8258-734f8f801ca7" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IssuedCapital"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_c9ac63af-38e0-417a-90fd-67487b6fb98d" xlink:to="loc_ifrs-full_IssuedCapital_5fb40aab-74c4-4521-8258-734f8f801ca7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_OtherReservesIncludingRetainedEarnings_9f2fcc86-e6d8-44cb-a4cb-590e3b440a70" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_OtherReservesIncludingRetainedEarnings"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_c9ac63af-38e0-417a-90fd-67487b6fb98d" xlink:to="loc_iag_OtherReservesIncludingRetainedEarnings_9f2fcc86-e6d8-44cb-a4cb-590e3b440a70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TreasuryShares_f13bed32-d06d-4878-9be0-0a1f08da78f1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_TreasuryShares"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent_c9ac63af-38e0-417a-90fd-67487b6fb98d" xlink:to="loc_ifrs-full_TreasuryShares_f13bed32-d06d-4878-9be0-0a1f08da78f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities_882f1369-161a-41a0-a46b-e8b3d9eafb0d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilities_894dc4cf-74f0-449f-acd3-b4b90d37dab2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Liabilities_882f1369-161a-41a0-a46b-e8b3d9eafb0d" xlink:to="loc_ifrs-full_NoncurrentLiabilities_894dc4cf-74f0-449f-acd3-b4b90d37dab2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities_e6ae6024-1dfa-400a-bb99-3ec75dcd06b0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_Liabilities_882f1369-161a-41a0-a46b-e8b3d9eafb0d" xlink:to="loc_ifrs-full_CurrentLiabilities_e6ae6024-1dfa-400a-bb99-3ec75dcd06b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentAssets_5d421b66-3264-4628-bb1e-eed5c3036260" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherCurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_OtherCurrentAssets_5d421b66-3264-4628-bb1e-eed5c3036260" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Inventories_e5b0780b-74d2-4773-8bc0-639916e69114" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Inventories"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_Inventories_e5b0780b-74d2-4773-8bc0-639916e69114" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_c498b26a-4ab6-40b5-b29b-51be68bf3f0a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_c498b26a-4ab6-40b5-b29b-51be68bf3f0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_0334f3fa-0899-419d-a069-73b8c893617a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_0334f3fa-0899-419d-a069-73b8c893617a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTradeReceivables_e9f516d6-790e-45a0-818a-d6d1cba87af8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTradeReceivables"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_CurrentTradeReceivables_e9f516d6-790e-45a0-818a-d6d1cba87af8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_82dbf3ca-f553-4793-a4e3-7581ae0110f3" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_CashAndCashEquivalents_82dbf3ca-f553-4793-a4e3-7581ae0110f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssets_a87c32f7-3baf-4b81-bf70-5db023ec02be" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentTaxAssets"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_CurrentTaxAssets_a87c32f7-3baf-4b81-bf70-5db023ec02be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets_840df7db-a5d9-4191-9408-87c4611c18d0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CurrentAssets_e6e21284-14de-4c17-bd62-cb02b8700ad1" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialAssets_840df7db-a5d9-4191-9408-87c4611c18d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities_4c403f3f-b6c0-48f5-b2ae-6d9c30b238e2" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities_446d7849-83e0-4f85-87aa-9bd361a371ea" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities_4c403f3f-b6c0-48f5-b2ae-6d9c30b238e2" xlink:to="loc_ifrs-full_Liabilities_446d7849-83e0-4f85-87aa-9bd361a371ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity_19777ccd-b79a-43c6-87bc-bc187315bb55" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Equity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_EquityAndLiabilities_4c403f3f-b6c0-48f5-b2ae-6d9c30b238e2" xlink:to="loc_ifrs-full_Equity_19777ccd-b79a-43c6-87bc-bc187315bb55" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://iairgroup.com/role/StatementofcashflowsindirectmethodStatement" xlink:type="simple" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#StatementofcashflowsindirectmethodStatement"/>
  <link:calculationLink xlink:role="http://iairgroup.com/role/StatementofcashflowsindirectmethodStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_9258819f-e9dc-4c46-a240-b9df0b87ef52" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_e5464640-39a8-4138-a10f-24115a40bd00" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_9258819f-e9dc-4c46-a240-b9df0b87ef52" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_e5464640-39a8-4138-a10f-24115a40bd00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_edd81f31-5779-4a36-9673-4c0ae1da2f72" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_9258819f-e9dc-4c46-a240-b9df0b87ef52" xlink:to="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_edd81f31-5779-4a36-9673-4c0ae1da2f72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_6209294f-3e43-4abf-a459-b945df6fc4fd" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_6209294f-3e43-4abf-a459-b945df6fc4fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_SettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities_b731204f-294c-445c-ae5a-d7e36cf00842" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_SettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_iag_SettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities_b731204f-294c-445c-ae5a-d7e36cf00842" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_d6b42a45-d69d-44b0-a7a7-e6d0cea1ada4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_d6b42a45-d69d-44b0-a7a7-e6d0cea1ada4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_967b3ed4-4c09-45b7-8611-f4eaaadbcdf0" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_967b3ed4-4c09-45b7-8611-f4eaaadbcdf0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_44fcb86e-a458-4dab-904f-22769bc39359" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_44fcb86e-a458-4dab-904f-22769bc39359" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_a59f3f1d-1020-42cd-8d97-069d1c105d98" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_b10d5b7e-1393-40a3-a030-f181412dab68" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_a59f3f1d-1020-42cd-8d97-069d1c105d98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables_9e525e85-466f-40f6-8ff4-c8d1dca9e538" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables_9e525e85-466f-40f6-8ff4-c8d1dca9e538" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_026aa19b-7e7d-4660-a4e3-a3a3f802c077" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable_026aa19b-7e7d-4660-a4e3-a3a3f802c077" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_e44ca846-5c08-4ac0-b508-d6f82758236a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_e44ca846-5c08-4ac0-b508-d6f82758236a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_e27cd245-6926-41a9-b499-305b52548974" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_e27cd245-6926-41a9-b499-305b52548974" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities_9e499754-ad78-46d8-aaae-e6ae87736c4a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeferredIncomeOtherThanContractLiabilities_9e499754-ad78-46d8-aaae-e6ae87736c4a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables_b8dfcd34-0eeb-4bf3-a074-0060ba8304f8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital_6e417895-08ba-43c3-991d-27e85cf43c6c" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables_b8dfcd34-0eeb-4bf3-a074-0060ba8304f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_CashCashEquivalentsAndInterestBearingDeposits_31ca7bb2-5899-447d-8884-4c39d61a4c95" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_CashCashEquivalentsAndInterestBearingDeposits"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents_ff3eff09-28e2-4662-8be5-875650403d81" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_CashCashEquivalentsAndInterestBearingDeposits_31ca7bb2-5899-447d-8884-4c39d61a4c95" xlink:to="loc_ifrs-full_CashAndCashEquivalents_ff3eff09-28e2-4662-8be5-875650403d81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_InterestBearingDepositsMaturingAfterMoreThanThreeMonths_e8c18112-8017-477d-837c-bf3ba1f086ad" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_InterestBearingDepositsMaturingAfterMoreThanThreeMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iag_CashCashEquivalentsAndInterestBearingDeposits_31ca7bb2-5899-447d-8884-4c39d61a4c95" xlink:to="loc_iag_InterestBearingDepositsMaturingAfterMoreThanThreeMonths_e8c18112-8017-477d-837c-bf3ba1f086ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_2b0cc377-2ceb-402a-bbdc-55048cbcc11f" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_2b0cc377-2ceb-402a-bbdc-55048cbcc11f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_ef69aabc-d79a-46f5-9daa-2eea8954c46c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_ef69aabc-d79a-46f5-9daa-2eea8954c46c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments_96994b0b-47d6-4658-9b21-71d50016ea2c" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments_96994b0b-47d6-4658-9b21-71d50016ea2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_9572c9e9-93ed-4e72-bb09-e83b8296853d" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_9572c9e9-93ed-4e72-bb09-e83b8296853d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_ac1d6900-7129-4501-a31d-428bf03b4cd6" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_ac1d6900-7129-4501-a31d-428bf03b4cd6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_TerminationSettlementPaymentRelatedToPurchaseOfInterest_b06b5ef4-6cd8-4cf0-bd72-ac6a5da489a2" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_TerminationSettlementPaymentRelatedToPurchaseOfInterest"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_c6a26a72-e5c0-4618-b89d-d779fa98d71b" xlink:to="loc_iag_TerminationSettlementPaymentRelatedToPurchaseOfInterest_b06b5ef4-6cd8-4cf0-bd72-ac6a5da489a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_a0e52ab8-7deb-4956-b4d2-81153567e7d1" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_a0e52ab8-7deb-4956-b4d2-81153567e7d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_AdjustmentsForPurchaseOfCarbonRelatedAssetsNetOfTheChangeInCarbonRelatedObligations_4417b758-0d31-49b9-b00f-5ba5b7adb49f" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_AdjustmentsForPurchaseOfCarbonRelatedAssetsNetOfTheChangeInCarbonRelatedObligations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_iag_AdjustmentsForPurchaseOfCarbonRelatedAssetsNetOfTheChangeInCarbonRelatedObligations_4417b758-0d31-49b9-b00f-5ba5b7adb49f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_bcf0616f-11ef-4b15-92a6-874166b7d693" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_bcf0616f-11ef-4b15-92a6-874166b7d693" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForProvisions_7ded868c-06cf-47ea-8cc4-721448ce71fa" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForProvisions"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_AdjustmentsForProvisions_7ded868c-06cf-47ea-8cc4-721448ce71fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss_17289829-ce46-43f4-a2d4-0b60101429ce" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OtherAdjustmentsToReconcileProfitLoss"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss_17289829-ce46-43f4-a2d4-0b60101429ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_AdjustmentsForEmployerContributionsToPensionSchemes_c1e27659-9966-4f11-ac8c-40a15a94b6c0" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_AdjustmentsForEmployerContributionsToPensionSchemes"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_iag_AdjustmentsForEmployerContributionsToPensionSchemes_c1e27659-9966-4f11-ac8c-40a15a94b6c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_97e0b11a-9ff3-4b2d-a195-5fa87624bd41" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_97e0b11a-9ff3-4b2d-a195-5fa87624bd41" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_AdjustmentsForPensionSchemeServiceCosts_080a3094-d08e-434f-9749-ebc7acabeba8" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_AdjustmentsForPensionSchemeServiceCosts"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_iag_AdjustmentsForPensionSchemeServiceCosts_080a3094-d08e-434f-9749-ebc7acabeba8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_b50d46ce-ceaa-4e64-bb60-6bbaa727f5b4" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_b50d46ce-ceaa-4e64-bb60-6bbaa727f5b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment_e2ac815f-711e-4515-85a8-ba85d2b88c2a" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment_e2ac815f-711e-4515-85a8-ba85d2b88c2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_e959f183-18f1-4ab5-9abc-8632a7befec8" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_e959f183-18f1-4ab5-9abc-8632a7befec8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_b84f8477-eb3b-40e0-b602-9096d9b35db5" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_b84f8477-eb3b-40e0-b602-9096d9b35db5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iag_PaymentToHMRCToAppealIAGLoyaltyVAT_1cab2c85-5e35-4fb1-92a7-468153ab932d" xlink:href="959800TZHQRUSH1ESL13-2025-12-31.xsd#iag_PaymentToHMRCToAppealIAGLoyaltyVAT"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_fc237a90-80c5-4a69-8714-52d247bd5817" xlink:to="loc_iag_PaymentToHMRCToAppealIAGLoyaltyVAT_1cab2c85-5e35-4fb1-92a7-468153ab932d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_2dca6387-a650-4ec6-b222-2d035a14f958" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_959e6016-6f43-4dd4-a642-4bf982a24e70" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_2dca6387-a650-4ec6-b222-2d035a14f958" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_959e6016-6f43-4dd4-a642-4bf982a24e70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_7bb981ef-dfb1-4ec1-ba35-261ff168c412" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_2dca6387-a650-4ec6-b222-2d035a14f958" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_7bb981ef-dfb1-4ec1-ba35-261ff168c412" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_8f496261-236c-443d-b67f-e3b63b3a9154" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_2dca6387-a650-4ec6-b222-2d035a14f958" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_8f496261-236c-443d-b67f-e3b63b3a9154" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
