Modified IRR (MIRR) Calculator

Modified Internal Rate of Return addresses a key weakness of traditional IRR: the unrealistic assumption that interim positive cash flows reinvest at the same rate as the project IRR itself. MIRR separates the reinvestment rate for positive cash flows from the finance rate used to fund negative cash flows. Enter initial investment, period cash flows, finance rate, and reinvestment rate. The calculator compounds positive inflows forward at the reinvestment rate and discounts outflows at the finance rate, then solves the single return that equates terminal value to present value of outflows. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

MIRR is widely used in capital budgeting case studies and corporate finance textbooks because it produces a unique solution unlike IRR which can have multiple roots with non conventional cash flows. Compare MIRR against your hurdle rate or WACC to decide whether a project creates value. When MIRR exceeds the cost of capital, the project is acceptable under reinvestment assumptions you explicitly control rather than assumptions embedded in IRR math. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

MIRR always produces a single unique rate while IRR can have multiple roots with non-conventional cash flows. When finance and reinvestment rates equal WACC, MIRR and NPV decision rules align. Pair with NPV Allocator on portfolios.tools for full capital budgeting analysis.

Use Modified IRR (MIRR) Calculator whenever inputs change: after market moves, new contributions, or revised personal assumptions. Bookmark the page for quick reruns without installing software.

Enter the sample inputs described in How it works to reproduce the scenario step by step with Modified IRR (MIRR) Calculator. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

Adjust one input at a time to see sensitivity. Modified IRR (MIRR) Calculator updates instantly so you can stress test optimistic and conservative assumptions before acting.

Reach for Modified IRR (MIRR) Calculator when reinvestment and finance rates applied to cash flows; solves mirr vs classic irr.. It suits quick what if analysis before trades, allocation changes, or plan updates. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

Pair with related tools when the decision spans taxes, liquidity, or multi year projections beyond what one formula captures.

Copying outputs without checking input units or stale market prices is a frequent error with Modified IRR (MIRR) Calculator. Confirm tickers, percentages, and dates before acting.

Running a single baseline scenario ignores tail risks. Stress test with conservative inputs and compare against related tools listed below when the decision is material.

Use finance rate for cost of capital on outflows and reinvestment rate for opportunity cost on inflows. MIRR assumes cash flows occur at period end. Non conventional patterns may still require NPV crossover analysis for mutually exclusive projects. Modified IRR (MIRR) Calculator does not replace personalized advice. Fees, slippage, account specific rules, and behavioral constraints may change real world outcomes. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

Combine with NPV Allocator and WACC Calculator on portfolios. Use those calculators when this tool alone does not capture the full decision. Corporate finance students use this calculator for homework validation, case study preparation, and interview drills. Compare outputs against textbook examples before submitting assignments. Adjust one input at a time to understand sensitivity. All math runs locally in your browser with no server transmission. Pair with related tools on portfolios.tools when decisions span multiple variables.

Internal links on portfolios.tools help you chain calculators: run Modified IRR (MIRR) Calculator first, then validate edge cases with a specialized tool from the related section below.