📉

IRR Calculator

Calculate Internal Rate of Return, NPV and payback period for any series of cash flows.

Initial Investment ($) Treated as negative cash flow (Year 0)

Discount Rate / WACC (%) Used to calculate NPV

Annual Cash Flows

No valid IRR found. The project may not generate positive returns. Check cash flows.

Internal Rate of Return (IRR)

Payback Period

Profitability Index

Total Cash Inflows

Net Profit / Loss

Decision Rule: Accept project if IRR > discount rate and NPV > 0. Profitability Index > 1 indicates value creation.

Your files are processed securely and automatically deleted after 1 hour. We never store or share your data.

About IRR Calculator

Our free IRR Calculator helps you run quick, accurate calculations for everyday financial and mathematical needs with just a few inputs. Calculate Internal Rate of Return, NPV and payback period for any series of cash flows. Enter your values, and the calculator instantly shows detailed results with breakdowns you can understand. No signup, no ads interrupting your workflow — just accurate, reliable calculations you can trust. Works on any device, saves nothing to our servers.

📖