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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019edbcf-4aea-7072-893f-1ba749860511,g:6bd3ec8e-71bd-43e5-9d36-45e70dba0ebf-->
<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://www.i80gold.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="iaux-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edbcf-4de7-74a7-93a0-a26cc4aa531f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019edbcf-4de7-79f9-9c6f-52dc2bb22560" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edbcf-4de7-74a7-93a0-a26cc4aa531f" xlink:to="loc_us-gaap_StockholdersEquity_019edbcf-4de7-79f9-9c6f-52dc2bb22560" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019edbcf-4de7-7c8c-9ebd-c946a9b89b1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edbcf-4de7-74a7-93a0-a26cc4aa531f" xlink:to="loc_us-gaap_Liabilities_019edbcf-4de7-7c8c-9ebd-c946a9b89b1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019edbcf-4de7-78f7-b8af-b2c1771a6c76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edbcf-4de7-74a7-93a0-a26cc4aa531f" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019edbcf-4de7-78f7-b8af-b2c1771a6c76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019edbcf-4de7-766f-a353-a207565a4a1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7116-b873-c279f1d7f42b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019edbcf-4de7-766f-a353-a207565a4a1c" xlink:to="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7116-b873-c279f1d7f42b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019edbcf-4de7-7cbd-96f3-3c54a0b5ead2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019edbcf-4de7-766f-a353-a207565a4a1c" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019edbcf-4de7-7cbd-96f3-3c54a0b5ead2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_019ef8bd-b06d-7d1a-aeda-c74ee02ff52d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019edbcf-4de7-766f-a353-a207565a4a1c" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_019ef8bd-b06d-7d1a-aeda-c74ee02ff52d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019ef8bd-b06d-78b3-b01d-3f702c952fe1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019edbcf-4de7-766f-a353-a207565a4a1c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019ef8bd-b06d-78b3-b01d-3f702c952fe1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7288-9cab-b452a33fd6d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:to="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7288-9cab-b452a33fd6d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019edbcf-4de7-77a2-a2f8-f7d0db94b659" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019edbcf-4de7-77a2-a2f8-f7d0db94b659" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019ef8c1-b711-78b7-a199-ebdd9e2e2668" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019ef8c1-b711-78b7-a199-ebdd9e2e2668" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationsNoncurrent_019ef8c1-b711-7299-8ef9-4cc12c39c0e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetRetirementObligationsNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:to="loc_us-gaap_AssetRetirementObligationsNoncurrent_019ef8c1-b711-7299-8ef9-4cc12c39c0e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019ef8c1-b711-7886-9233-497375e9d7aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019edbcf-4de7-7956-a6ec-ebc4dd40b301" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019ef8c1-b711-7886-9233-497375e9d7aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edbcf-4de7-7f4f-845f-281a55dd755f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edbcf-4de7-7f4f-845f-281a55dd755f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019edbcf-4de7-7a0e-aa00-f221ec0f3ae2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019edbcf-4de7-7a0e-aa00-f221ec0f3ae2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019edbcf-4de7-77d1-a389-0167740abd68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:to="loc_us-gaap_LongTermDebtCurrent_019edbcf-4de7-77d1-a389-0167740abd68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationCurrent_019edbcf-4de7-7c68-8fe3-62afbb01b94a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetRetirementObligationCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:to="loc_us-gaap_AssetRetirementObligationCurrent_019edbcf-4de7-7c68-8fe3-62afbb01b94a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019fb755-42b1-7c56-8583-912a0eca9ff2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019edbcf-4de7-7469-b3ba-559b558004b9" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019fb755-42b1-7c56-8583-912a0eca9ff2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edbcf-4de7-7613-a95f-c3f1c787ed16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edbcf-4de7-7613-a95f-c3f1c787ed16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019edbcf-4de7-7112-bf74-514993473470" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:to="loc_us-gaap_OtherAssetsCurrent_019edbcf-4de7-7112-bf74-514993473470" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_PrepaidExpenseAndDepositsAssetsCurrent_019edbcf-4de7-7dee-b6dd-c11de4f02591" xlink:href="iaux-20260630.xsd#iaux_PrepaidExpenseAndDepositsAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:to="loc_iaux_PrepaidExpenseAndDepositsAssetsCurrent_019edbcf-4de7-7dee-b6dd-c11de4f02591" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019edbcf-4de7-77ad-9db8-3bc36a4c0c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:to="loc_us-gaap_InventoryNet_019edbcf-4de7-77ad-9db8-3bc36a4c0c3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_019edbcf-4de7-7899-a4fd-75d1f634756f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019edbcf-4de7-7b60-8afa-00fe19055e72" xlink:to="loc_us-gaap_ReceivablesNetCurrent_019edbcf-4de7-7899-a4fd-75d1f634756f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019edbcf-4de7-7f7a-9b90-d74039a9cdc6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019edbcf-4de7-7772-87b9-b3bfecf46dea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019edbcf-4de7-7f7a-9b90-d74039a9cdc6" xlink:to="loc_us-gaap_CommonStockValue_019edbcf-4de7-7772-87b9-b3bfecf46dea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019edbcf-4de7-797e-92ee-c666cc1ea0c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019edbcf-4de7-7f7a-9b90-d74039a9cdc6" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019edbcf-4de7-797e-92ee-c666cc1ea0c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019edbcf-4de7-7993-9416-e36fe8c13977" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019edbcf-4de7-7f7a-9b90-d74039a9cdc6" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019edbcf-4de7-7993-9416-e36fe8c13977" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="iaux-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4de7-7980-ab6f-77c6045b79a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4de7-7980-ab6f-77c6045b79a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7df7-b86e-5298749c76d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:to="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7df7-b86e-5298749c76d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_NonoperatingIncomeOther_019edbcf-4de7-7174-ab51-6d57339e8b08" xlink:href="iaux-20260630.xsd#iaux_NonoperatingIncomeOther"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:to="loc_iaux_NonoperatingIncomeOther_019edbcf-4de7-7174-ab51-6d57339e8b08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4de7-74b9-8f74-92c2f0d810ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:to="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4de7-74b9-8f74-92c2f0d810ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019edbcf-4de7-7d78-a4f5-835b3218f0f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-7822-a03b-657834fd07b8" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019edbcf-4de7-7d78-a4f5-835b3218f0f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-7b20-b2c9-895de3742c26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-71ed-8727-6088de46bfe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-7b20-b2c9-895de3742c26" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4de7-71ed-8727-6088de46bfe7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019edbcf-4de7-7a09-8eea-27b38847bb10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-7b20-b2c9-895de3742c26" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019edbcf-4de7-7a09-8eea-27b38847bb10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7eab-b3ba-d45140ef1751" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019edbcf-4de7-75e2-88ba-c2089efae94a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7eab-b3ba-d45140ef1751" xlink:to="loc_us-gaap_GrossProfit_019edbcf-4de7-75e2-88ba-c2089efae94a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_PreDevelopmentExpenseEvaluationAndExploration_019edbcf-4de7-74c2-88a1-9fce99bf3c6b" xlink:href="iaux-20260630.xsd#iaux_PreDevelopmentExpenseEvaluationAndExploration"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7eab-b3ba-d45140ef1751" xlink:to="loc_iaux_PreDevelopmentExpenseEvaluationAndExploration_019edbcf-4de7-74c2-88a1-9fce99bf3c6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019edbcf-4de7-7aee-8fc9-9dd4514f3a5b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7eab-b3ba-d45140ef1751" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019edbcf-4de7-7aee-8fc9-9dd4514f3a5b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_PropertyMaintenanceExpense_019edbcf-4de7-7fd1-88e9-d9ac2d67a6ca" xlink:href="iaux-20260630.xsd#iaux_PropertyMaintenanceExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019edbcf-4de7-7eab-b3ba-d45140ef1751" xlink:to="loc_iaux_PropertyMaintenanceExpense_019edbcf-4de7-7fd1-88e9-d9ac2d67a6ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019edbcf-4de7-7f54-8a19-df01c401f3a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-7464-b427-d9f85909ec48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019edbcf-4de7-7f54-8a19-df01c401f3a5" xlink:to="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-7464-b427-d9f85909ec48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019edbcf-4de7-731a-a750-19d7444209a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edbcf-4de7-7b51-8a3b-9a7c93591a1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019edbcf-4de7-731a-a750-19d7444209a5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edbcf-4de7-7b51-8a3b-9a7c93591a1b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019edbcf-4de7-774d-a589-0423aa5f58a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostDepreciationAmortizationAndDepletion"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019edbcf-4de7-731a-a750-19d7444209a5" xlink:to="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019edbcf-4de7-774d-a589-0423aa5f58a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_019edbcf-4de7-7767-ad73-5a841bf2a3eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_019edbcf-4de7-731a-a750-19d7444209a5" xlink:to="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_019edbcf-4de7-7767-ad73-5a841bf2a3eb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="iaux-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-72ca-906c-ea2057520ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_NetIncomeLoss_019edbcf-4de7-72ca-906c-ea2057520ac7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory_019edbcf-4de7-7545-a9ef-b6c8eac80665" xlink:href="iaux-20260630.xsd#iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory_019edbcf-4de7-7545-a9ef-b6c8eac80665" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_019edbcf-4de7-75fd-b1b9-706e3b86afb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetRetirementObligationAccretionExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_019edbcf-4de7-75fd-b1b9-706e3b86afb1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019edbcf-4de7-75fe-b763-66a01f8217d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_ShareBasedCompensation_019edbcf-4de7-75fe-b763-66a01f8217d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019edbcf-4de7-77c4-a7ea-cd1b8fafd1a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019edbcf-4de7-77c4-a7ea-cd1b8fafd1a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019edbcf-4de7-7edd-89b9-86f5726850b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019edbcf-4de7-7edd-89b9-86f5726850b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_019edbcf-4de7-753a-a0bd-0f45cdf92169" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_InterestExpense_019edbcf-4de7-753a-a0bd-0f45cdf92169" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_FinanceFeeExpense_019edbcf-4de7-7225-8681-c8f6cdb65c7f" xlink:href="iaux-20260630.xsd#iaux_FinanceFeeExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_iaux_FinanceFeeExpense_019edbcf-4de7-7225-8681-c8f6cdb65c7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019edbcf-4de7-7adc-8d46-2a81dd873e23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_019edbcf-4de7-7adc-8d46-2a81dd873e23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4de7-76c1-a41d-f96c922c9b42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingCapital"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7789-9514-27cfd60633ad" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4de7-76c1-a41d-f96c922c9b42" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019edbcf-4de7-76df-bbc7-bf00ff24a744" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019edbcf-4de7-7915-bf5b-d29b586185b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019edbcf-4de7-76df-bbc7-bf00ff24a744" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019edbcf-4de7-7915-bf5b-d29b586185b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019edbcf-4de7-7b4a-bd15-f30c0005c7e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019edbcf-4de7-79af-b720-2d3f79a70be9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019edbcf-4de7-7b4a-bd15-f30c0005c7e8" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019edbcf-4de7-79af-b720-2d3f79a70be9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019edbcf-4de7-78c3-8382-c893e0492935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019edbcf-4de7-7b4a-bd15-f30c0005c7e8" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019edbcf-4de7-78c3-8382-c893e0492935" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7f90-829f-6faa51111682" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019edbcf-4de7-7b4a-bd15-f30c0005c7e8" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019edbcf-4de7-7f90-829f-6faa51111682" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019edbcf-4de7-7c4d-bc86-4c1b9ddc2cad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edbcf-4de7-7eaf-a146-67968180f296" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019edbcf-4de7-7c4d-bc86-4c1b9ddc2cad" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edbcf-4de7-7eaf-a146-67968180f296" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_019edbcf-4de7-7eea-a44a-efad5044b05d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019edbcf-4de7-7c4d-bc86-4c1b9ddc2cad" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_019edbcf-4de7-7eea-a44a-efad5044b05d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSAlternateCalc" xlink:type="simple" xlink:href="iaux-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSAlternateCalc"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSAlternateCalc" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt_019fcec4-1b27-7ef0-b402-ce02374759ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt_019fcec4-1b27-7ef0-b402-ce02374759ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019fcec4-4977-70f9-808d-dc55de32af02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019fcec4-4977-70f9-808d-dc55de32af02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019fcec4-7acf-7706-8cb5-9093e52acfce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019fcec4-7acf-7706-8cb5-9093e52acfce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_ProceedsFromWarrantAndStockOptionExercises_019fcec4-aab9-71bb-9756-b6dc56dd4d42" xlink:href="iaux-20260630.xsd#iaux_ProceedsFromWarrantAndStockOptionExercises"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_iaux_ProceedsFromWarrantAndStockOptionExercises_019fcec4-aab9-71bb-9756-b6dc56dd4d42" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_ProceedsFromDebtAndOtherLiabilityIssuanceCosts_019fcec4-e1e6-7d63-83eb-5a8a881da1ab" xlink:href="iaux-20260630.xsd#iaux_ProceedsFromDebtAndOtherLiabilityIssuanceCosts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_iaux_ProceedsFromDebtAndOtherLiabilityIssuanceCosts_019fcec4-e1e6-7d63-83eb-5a8a881da1ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019fcec5-1aae-7188-9671-1d3034be2a5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019fcec3-ec92-71b7-8392-f8fe8adfa9e9" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019fcec5-1aae-7188-9671-1d3034be2a5e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/INVENTORIESScheduleofInventoryDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#INVENTORIESScheduleofInventoryDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/INVENTORIESScheduleofInventoryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019edbcf-4de7-7cee-8fda-53fc24b6c70b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019edbcf-4de7-7cee-8fda-53fc24b6c70b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019edbcf-4de7-768b-ac4c-f70f338d7f31" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019edbcf-4de7-768b-ac4c-f70f338d7f31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_InventoryStockpileAtThirdPartyProcessingFacility_019fc84c-cd6a-7fe7-873c-494355f032cc" xlink:href="iaux-20260630.xsd#iaux_InventoryStockpileAtThirdPartyProcessingFacility"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:to="loc_iaux_InventoryStockpileAtThirdPartyProcessingFacility_019fc84c-cd6a-7fe7-873c-494355f032cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_InventoryMineralizedMaterialNetOfReserves_019edbcf-4de7-74bf-a709-69dc51d94dc6" xlink:href="iaux-20260630.xsd#iaux_InventoryMineralizedMaterialNetOfReserves"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:to="loc_iaux_InventoryMineralizedMaterialNetOfReserves_019edbcf-4de7-74bf-a709-69dc51d94dc6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_019edbcf-4de7-7ff2-bbea-6de1170b2386" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019edbcf-4de7-7184-beb0-71552d1d9c58" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_019edbcf-4de7-7ff2-bbea-6de1170b2386" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/OTHERASSETSScheduleofOtherAssetsDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#OTHERASSETSScheduleofOtherAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/OTHERASSETSScheduleofOtherAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019edbcf-4ead-7673-93c3-8f16e2444972" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_019edbcf-4ead-7f91-ac2f-123e2d7ed05f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssets_019edbcf-4ead-7673-93c3-8f16e2444972" xlink:to="loc_us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_019edbcf-4ead-7f91-ac2f-123e2d7ed05f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019edbcf-4ead-7c12-a69b-33e3e7f9cab0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssets_019edbcf-4ead-7673-93c3-8f16e2444972" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019edbcf-4ead-7c12-a69b-33e3e7f9cab0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseNoncurrent_019fa345-1670-7c6b-a7f8-5d2eb67a4736" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssets_019edbcf-4ead-7673-93c3-8f16e2444972" xlink:to="loc_us-gaap_PrepaidExpenseNoncurrent_019fa345-1670-7c6b-a7f8-5d2eb67a4736" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019edbcf-4ead-7f60-b7e4-3644955f99f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssets_019edbcf-4ead-7673-93c3-8f16e2444972" xlink:to="loc_us-gaap_OtherAssetsCurrent_019edbcf-4ead-7f60-b7e4-3644955f99f3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/PROPERTYPLANTANDEQUIPMENTNETDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#PROPERTYPLANTANDEQUIPMENTNETDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/PROPERTYPLANTANDEQUIPMENTNETDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019edbcf-4de8-788b-bddc-a3098040f026" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019edbcf-4de8-7a03-9f1d-d8a2773c4315" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019edbcf-4de8-788b-bddc-a3098040f026" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019edbcf-4de8-7a03-9f1d-d8a2773c4315" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019edbcf-4de8-7bf0-80b2-9effc912d551" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019edbcf-4de8-788b-bddc-a3098040f026" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019edbcf-4de8-7bf0-80b2-9effc912d551" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/PROPERTYPLANTANDEQUIPMENTNETSummaryofDepreciationDepletionandAmortizationDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#PROPERTYPLANTANDEQUIPMENTNETSummaryofDepreciationDepletionandAmortizationDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/PROPERTYPLANTANDEQUIPMENTNETSummaryofDepreciationDepletionandAmortizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory_019edbcf-4de8-7610-ada7-28ae2b5e8e11" xlink:href="iaux-20260630.xsd#iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019edbcf-4de8-7a59-ac01-9cb07e9b54cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostDepreciationAmortizationAndDepletion"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory_019edbcf-4de8-7610-ada7-28ae2b5e8e11" xlink:to="loc_us-gaap_CostDepreciationAmortizationAndDepletion_019edbcf-4de8-7a59-ac01-9cb07e9b54cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019edbcf-4de8-7e87-8efa-a9c575fddcca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_DepreciationDepletionAndAmortizationBeforeChangeInInventory_019edbcf-4de8-7610-ada7-28ae2b5e8e11" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019edbcf-4de8-7e87-8efa-a9c575fddcca" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/OTHERLIABILITIESScheduleofOtherLiabilitiesDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#OTHERLIABILITIESScheduleofOtherLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/OTHERLIABILITIESScheduleofOtherLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019edbcf-4de8-7543-9f97-f54269fc705f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019edbcf-4de8-7633-9d6c-47ab7541549c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilities_019edbcf-4de8-7543-9f97-f54269fc705f" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019edbcf-4de8-7633-9d6c-47ab7541549c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019edbcf-4de8-7609-9ac7-63aeb8515b3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilities_019edbcf-4de8-7543-9f97-f54269fc705f" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019edbcf-4de8-7609-9ac7-63aeb8515b3b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/SUPPLEMENTALCASHFLOWINFORMATIONScheduleofChangesinNonCashWorkingCapitalDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#SUPPLEMENTALCASHFLOWINFORMATIONScheduleofChangesinNonCashWorkingCapitalDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/SUPPLEMENTALCASHFLOWINFORMATIONScheduleofChangesinNonCashWorkingCapitalDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingCapital"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_019edbcf-4ead-78b8-9c94-b5a2cd4fd92d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInReceivables"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_019edbcf-4ead-78b8-9c94-b5a2cd4fd92d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_IncreaseDecreaseInPrepaidExpenseAndDepositAsset_019edbcf-4ead-79d6-963e-ca296d70128e" xlink:href="iaux-20260630.xsd#iaux_IncreaseDecreaseInPrepaidExpenseAndDepositAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_iaux_IncreaseDecreaseInPrepaidExpenseAndDepositAsset_019edbcf-4ead-79d6-963e-ca296d70128e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019edbcf-4ead-7352-8997-f7c2eb7b66a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019edbcf-4ead-7352-8997-f7c2eb7b66a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019fc840-e1be-721c-855a-badac8568574" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019fc840-e1be-721c-855a-badac8568574" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019edbcf-4ead-7475-8db3-e2bc88842b47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019edbcf-4ead-7475-8db3-e2bc88842b47" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_019edbcf-4ead-7b3b-ba85-a02ec2e40fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_019edbcf-4ead-7b3b-ba85-a02ec2e40fc5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_019fc84f-c43d-705b-b735-3bd1f10b7910" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019edbcf-4ead-7ccb-a8ef-1eb7bd56e7bf" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_019fc84f-c43d-705b-b735-3bd1f10b7910" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/SUPPLEMENTALCASHFLOWINFORMATIONScheduleofNonCashItemsinOtherExpenseIncomeDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#SUPPLEMENTALCASHFLOWINFORMATIONScheduleofNonCashItemsinOtherExpenseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/SUPPLEMENTALCASHFLOWINFORMATIONScheduleofNonCashItemsinOtherExpenseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019fd2f5-3206-75e6-86f0-b93e2fc41dd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfDerivatives_019fd2f5-3206-7f73-af50-ee907be6641e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfDerivatives"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense_019fd2f5-3206-75e6-86f0-b93e2fc41dd8" xlink:to="loc_us-gaap_GainLossOnSaleOfDerivatives_019fd2f5-3206-7f73-af50-ee907be6641e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019fd2f5-3206-7cca-a083-a9af499b3f08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense_019fd2f5-3206-75e6-86f0-b93e2fc41dd8" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019fd2f5-3206-7cca-a083-a9af499b3f08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_GainLossOnOfftakeLiability_019fd2f5-3206-7b8b-85e7-d28f5474c46a" xlink:href="iaux-20260630.xsd#iaux_GainLossOnOfftakeLiability"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense_019fd2f5-3206-75e6-86f0-b93e2fc41dd8" xlink:to="loc_iaux_GainLossOnOfftakeLiability_019fd2f5-3206-7b8b-85e7-d28f5474c46a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_OtherNoncashIncomeExpenseOther_019fd2f5-3206-74df-8fbb-b2ed68d8a5c6" xlink:href="iaux-20260630.xsd#iaux_OtherNoncashIncomeExpenseOther"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense_019fd2f5-3206-75e6-86f0-b93e2fc41dd8" xlink:to="loc_iaux_OtherNoncashIncomeExpenseOther_019fd2f5-3206-74df-8fbb-b2ed68d8a5c6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/OTHEREXPENSESANDOTHERINCOMEDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#OTHEREXPENSESANDOTHERINCOMEDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/OTHEREXPENSESANDOTHERINCOMEDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative_019edbcf-4ead-7b89-829b-a13122bee1ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative_019edbcf-4ead-7b89-829b-a13122bee1ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_019edbcf-4ead-7308-8c0d-00ea429b9944" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts_019edbcf-4ead-7308-8c0d-00ea429b9944" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnContractTermination_019edbcf-4ead-70ef-b719-88551c4fdeff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnContractTermination"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_us-gaap_GainLossOnContractTermination_019edbcf-4ead-70ef-b719-88551c4fdeff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_EmbeddedDerivativeGainLossOnEmbeddedDerivative_019edbcf-4ead-7f85-9557-aa42a96bb19c" xlink:href="iaux-20260630.xsd#iaux_EmbeddedDerivativeGainLossOnEmbeddedDerivative"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_iaux_EmbeddedDerivativeGainLossOnEmbeddedDerivative_019edbcf-4ead-7f85-9557-aa42a96bb19c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_LossOnFairValueAdjustmentOfWarrants_019edbcf-4ead-7ba8-b487-0b95277c57a8" xlink:href="iaux-20260630.xsd#iaux_LossOnFairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_iaux_LossOnFairValueAdjustmentOfWarrants_019edbcf-4ead-7ba8-b487-0b95277c57a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_OtherNonoperatingExpenseOther_019fa867-577b-7f22-8147-cf4792750a94" xlink:href="iaux-20260630.xsd#iaux_OtherNonoperatingExpenseOther"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingExpense_019edbcf-4ead-7270-ae63-52ed5f880b0a" xlink:to="loc_iaux_OtherNonoperatingExpenseOther_019fa867-577b-7f22-8147-cf4792750a94" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/INTERESTEXPENSESDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#INTERESTEXPENSESDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/INTERESTEXPENSESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4ead-7ec4-98e5-f85796f7de37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_019edbcf-4ead-7186-a597-43a98d25371c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4ead-7ec4-98e5-f85796f7de37" xlink:to="loc_us-gaap_InterestExpenseDebt_019edbcf-4ead-7186-a597-43a98d25371c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_019edbcf-4ead-79b2-8363-a6101407bb18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4ead-7ec4-98e5-f85796f7de37" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_019edbcf-4ead-79b2-8363-a6101407bb18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOther_019edbcf-4ead-7715-944d-2e6f34095d80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOther"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseNonoperating_019edbcf-4ead-7ec4-98e5-f85796f7de37" xlink:to="loc_us-gaap_InterestExpenseOther_019edbcf-4ead-7715-944d-2e6f34095d80" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/SEGMENTINFORMATIONDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#SEGMENTINFORMATIONDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/SEGMENTINFORMATIONDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_iaux_OperatingIncomeLossAdjusted_019edbcf-4ead-7648-bcb7-48b38b3c8173" xlink:href="iaux-20260630.xsd#iaux_OperatingIncomeLossAdjusted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edbcf-4ead-7d5b-8b88-6235d5c3fe44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_OperatingIncomeLossAdjusted_019edbcf-4ead-7648-bcb7-48b38b3c8173" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edbcf-4ead-7d5b-8b88-6235d5c3fe44" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortizationAndRoyalties_019edbcf-4ead-7614-99fa-303784294505" xlink:href="iaux-20260630.xsd#iaux_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortizationAndRoyalties"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_OperatingIncomeLossAdjusted_019edbcf-4ead-7648-bcb7-48b38b3c8173" xlink:to="loc_iaux_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortizationAndRoyalties_019edbcf-4ead-7614-99fa-303784294505" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_PreDevelopmentExpenseEvaluationAndExploration_019edbcf-4ead-776f-963a-5a670300ceea" xlink:href="iaux-20260630.xsd#iaux_PreDevelopmentExpenseEvaluationAndExploration"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_OperatingIncomeLossAdjusted_019edbcf-4ead-7648-bcb7-48b38b3c8173" xlink:to="loc_iaux_PreDevelopmentExpenseEvaluationAndExploration_019edbcf-4ead-776f-963a-5a670300ceea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_iaux_PropertyMaintenanceExpense_019edbcf-4ead-70a5-9f63-6b06ecac6924" xlink:href="iaux-20260630.xsd#iaux_PropertyMaintenanceExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_iaux_OperatingIncomeLossAdjusted_019edbcf-4ead-7648-bcb7-48b38b3c8173" xlink:to="loc_iaux_PropertyMaintenanceExpense_019edbcf-4ead-70a5-9f63-6b06ecac6924" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/INCOMETAXESScheduleofComponentsoftheConsolidatedIncomeTaxExpenseRecoveryDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#INCOMETAXESScheduleofComponentsoftheConsolidatedIncomeTaxExpenseRecoveryDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/INCOMETAXESScheduleofComponentsoftheConsolidatedIncomeTaxExpenseRecoveryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019fceb4-3dda-7e1a-93a0-4d1f8932aa97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_019fceb4-3dda-7447-8811-0a37d164ebb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019fceb4-3dda-7e1a-93a0-4d1f8932aa97" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_019fceb4-3dda-7447-8811-0a37d164ebb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit_019fceb4-3dda-747a-9c8b-f0a587eebcd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019fceb4-3dda-7e1a-93a0-4d1f8932aa97" xlink:to="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit_019fceb4-3dda-747a-9c8b-f0a587eebcd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019edbcf-4ead-7db3-947b-7740dcf7bb4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019f039f-8bcd-7495-9d40-e7fab1c2a5af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_019edbcf-4ead-7db3-947b-7740dcf7bb4d" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_019f039f-8bcd-7495-9d40-e7fab1c2a5af" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.i80gold.com/role/INCOMETAXESScheduleofLossBeforeIncomeTaxesDetails" xlink:type="simple" xlink:href="iaux-20260630.xsd#INCOMETAXESScheduleofLossBeforeIncomeTaxesDetails"/>
  <link:calculationLink xlink:role="http://www.i80gold.com/role/INCOMETAXESScheduleofLossBeforeIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4ead-770d-b981-992e8e4d36d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_019edbcf-4ead-7265-b713-0098f7f1fcdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4ead-770d-b981-992e8e4d36d0" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_019edbcf-4ead-7265-b713-0098f7f1fcdb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_019edbcf-4ead-7a74-997b-2e9eff84bf91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edbcf-4ead-770d-b981-992e8e4d36d0" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_019edbcf-4ead-7a74-997b-2e9eff84bf91" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
