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IRR Calculator

Adjust the inputs below. Results update as you type.

How it works

IRR is the discount rate that makes NPV = 0. Entered as: initial outflow (negative), then subsequent inflows (positive) or outflows. Compare IRR to your hurdle rate (cost of capital) to decide if an investment is worthwhile. Limitations: assumes reinvestment at IRR rate (often unrealistic); multiple sign changes create multiple IRRs. MIRR addresses reinvestment rate assumptions.

Cash flows per period, comma-separated (first is usually negative investment). IRR is the rate per period.

IRR (per period)

15.1917%

NPV check: 2.2737e-12

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