Finance & Money
IRR Calculator - Estimate internal rate of return (IRR) for cash flows.
Estimate internal rate of return (IRR) for cash flows.
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What is IRR?
IRR is the discount rate that makes the NPV of all cash flows equal to zero - essentially your investment's yield.
How do I interpret IRR?
Compare IRR to your required return. If IRR > required return, the investment is attractive.
What are IRR limitations?
IRR assumes reinvestment at the same rate and can give multiple values for non-conventional cash flows.
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About this tool
This IRR Calculator turns your inputs into practical results. Provide Initial Investment, Cash Flows, and Year to calculate Internal Rate of Return and vs Required Return.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.