Internal Rate of Return (IRR) Calculator
Estimate IRR for a simple investment with an initial outflow and equal periodic inflows using iterative root finding.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Planning estimate only. This IRR solver assumes one initial outflow followed by equal periodic inflows and returns a periodic rate.
Estimated IRR12.38%
Total undiscounted inflows$700,000.00
Net undiscounted gain$200,000.00
Why use this internal rate of return (irr) calculator?
Use this free internal rate of return (irr) calculator directly in your browser. There is no account to create and the result appears immediately.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is Internal Rate of Return (IRR) Calculator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use Internal Rate of Return (IRR) Calculator?
No. You can use the core Toolbox workflow without signing up.
Does Internal Rate of Return (IRR) Calculator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.