↩️ IRR Calculator
How It Works
Estimate the internal rate of return for a series of cash flows. Use it to understand the key payment, cost, return, or cash-flow result before making a decision. Use IRR Calculator to explore how the main financial inputs change the payment, cost, return, or cash-flow result before making a decision.
The result is most useful when the inputs match the definitions used by this calculator. For this tool, the underlying method is: IRR is the rate that makes NPV equal to zero.. Compare the output with the worked example, then change one meaningful input at a time to see how the result responds.
Understanding IRR
IRR is a financial calculation that uses the inputs shown above to estimate a payment, amount, rate, return, cost, or planning value. Financial calculations depend on assumptions and may not include every fee, tax, market change, or contractual term. Review the irr inputs and units before relying on the result.
When to Use This Calculator
Use IRR Calculator to explore how the main financial inputs change the payment, cost, return, or cash-flow result before making a decision.
Practical tip: For this IRR Calculator, change one financial assumption at a time—such as the rate, amount, contribution, fee, or tenure shown in the inputs—so you can see which factor drives the result.
Formula
IRR is the rate that makes NPV equal to zero.
Example
For cash flows -1000, 400, 400, 400, the IRR is approximately 9.7%.