IRR Calculator
Calculate the Internal Rate of Return for an initial investment and 3 years of cash flow.
How the IRR Calculator Works
Calculate the Internal Rate of Return for an initial investment and 3 years of cash flow. Enter your own numbers above and the result updates instantly as you type — there's no "Calculate" button to click and nothing is ever submitted to a server.
This tool belongs to our Investment & Interest category, part of a library of 70+ free financial calculators covering mortgages, auto loans, investing, retirement, tax and more.
Related Investment & Interest Calculators
Estimate only, not financial advice. Lenders, banks and tax rules can differ from the formulas used here.
About the IRR Calculator
Calculate the Internal Rate of Return for an initial investment and 3 years of cash flow. Interest and returns compound over time, which makes early decisions count. Everything runs in your browser. Nothing you type is sent anywhere.
Use it to compare options before you commit, and then confirm figures with the provider. It sits in the Investment and interest group of the AZRS financial calculator library, next to related tools linked below.
How to use it
Enter initial investment. Default value: 50000.
Enter year 1 cash flow. Default value: 15000.
Enter year 2 cash flow. Default value: 18000.
Enter year 3 cash flow. Default value: 22000.
Read the result. The main figure appears first, with supporting numbers beneath it.
Worked example with the default values
Internal Rate of Return: 4.62% Total Cash Returned: $55,000.00 Net Gain: $5,000.00
Tips for good results
- Change one value at a time to see which input matters most.
- Round-number tests (for example a rate half a point higher) show how sensitive the result is.
- Write down the result and the inputs, then compare with a second offer or scenario.
- Confirm the final figures with your lender, adviser or the official source.
Common mistakes
- Entering a percent as a decimal, or the other way round.
- Comparing two results that used different terms or assumptions.
Common questions
What does the irr calculator do?
Calculate the Internal Rate of Return for an initial investment and 3 years of cash flow.
Are the results exact?
No. They are estimates from standard formulas. Real offers, fees and rules can differ.
Is my data stored?
No. The calculation happens in your browser.
Is this advice?
No. It is a planning aid, not financial advice.
More calculators
Estimate only, not financial advice. Lenders, banks and tax rules can differ from the formulas used here.
