WiseCalc

IRR Calculator

Calculate the Internal Rate of Return for a series of cash flows to evaluate investment profitability.

Cash flows

Use commas between values and a dot for decimals; negative = paid, positive = received. Include 0 for a year with no flow. Maximum 64 annual cash flows.

Annual flows at times 0, 1, 2, ... in entered order. The first flow is at time zero; a zero entry preserves an empty year. IRR solves sum(flow / (1 + rate)^year) = 0 for finite rates above -100%. Multiple roots are shown separately; unresolved roots are unavailable rather than zero. No irregular dates, taxes, fees or reinvestment projection. Solver work and input size are bounded. Charts preserve signed flows; extreme values use scientific notation.

Results

Internal Rate of Return (IRR)
15.32%

One finite annual IRR was found with a verified zero-NPV residual.

Annual Cash Flows

How to use the IRR Calculator

Enter the initial investment as a negative cash flow, then list each expected inflow or outflow in the order it happens. The calculator solves for the discount rate that makes the net present value equal to zero.

Use the result as a screening tool. If the IRR is above your required rate of return, the project may be attractive. If it is below your hurdle rate, the investment may not compensate you enough for the risk.

IRR is most useful when you compare similar opportunities. For projects with unusual cash-flow timing, multiple sign changes, or very different sizes, confirm the decision with NPV and payback analysis too.

Frequently Asked Questions