IRR calculator
Find the internal rate of return — the discount rate that makes the net present value of all cash flows equal to zero.
Cash flows (first negative = investment)
What is IRR?
IRR is the discount rate r where NPV = 0. If your cost of capital is lower than the IRR, the investment is profitable.
Decision rule
IRR > cost of capital: Accept. IRR < cost of capital: Reject.
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