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IRR Calculator

Internal rate of return for a cash-flow series.

Find the internal rate of return — the discount rate at which the net present value of a project equals zero.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

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Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

IRR is the rate r that solves Σ CFt / (1 + r)t = 0. We find it numerically with bisection.

In depth

Find the internal rate of return — the discount rate at which the net present value of a project equals zero.