IRR（内部収益率）計算機

The Internal Rate of Return (IRR) is a sophisticated metric used to estimate the annual growth rate an investment is expected to generate. Unlike NPV, which gives you a dollar value, IRR gives you a percentage. It is specifically defined as the discount rate that would make the Net Present Value (NPV) of all cash flows equal to exactly zero. Corporations use IRR to compare different capital projects, often only proceeding if the IRR exceeds a certain 'hurdle rate'. Our IRR Calculator handles the complex trial-and-error math required to find this rate, giving you a clear picture of your investment's expected yield.