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Finance

IRR Calculator

Find the periodic return for one initial investment followed by equally spaced nonnegative cash inflows.

Amounts stay on this deviceMethod and assumptions below
Financial workspace
Financial workspace

Check the assumptions, then compare another scenario.

See the method

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Runs on your device

Your financial summary

Your result

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Use the Calculate button to see your result.

Estimate based on your inputs and the stated assumptions.

How to use this tool

  1. Enter cash flows, initial outflow first.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

IRR is the rate that makes NPV equal to zero. Bisection searches from −99.9% to 1,000% per period. A single initial outflow followed by nonnegative inflows gives the supported conventional cash-flow pattern.

A WORKED EXAMPLE

Using cash flows, initial outflow first = -1000, 400, 400, 400, the result is 9.70102574 %. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

Uneven dates and later outflows are not supported. This restriction avoids presenting one arbitrary root for cash flows with multiple possible IRRs. A scenario calculation using your inputs, before unlisted fees or taxes. It is not a quoted product rate or personalized recommendation.

Common questions

Which inputs does this calculation need?

Find the periodic return for one initial investment followed by equally spaced nonnegative cash inflows. Enter cash flows, initial outflow first. The filled example is editable and is not a saved personal record.

How should I interpret the result?

Uneven dates and later outflows are not supported. This restriction avoids presenting one arbitrary root for cash flows with multiple possible IRRs. A scenario calculation using your inputs, before unlisted fees or taxes. It is not a quoted product rate or personalized recommendation.

Methodology maintained by ClarityKit. How these tools are built and checked.