IRR Calculator
Internal rate of return on cash flows.
Enter your values
Enter the initial investment in $.
Enter the yearly cash flows (comma separated) you are working with.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- IRR
- 10.41%
- Total cash returned
- $65,000.00
- Net profit
- $15,000.00
- Simple multiple
- 1.3×
- NPV at 10%
- $489.72
Quick answer
IRR is the discount rate at which a project's net present value equals zero — the annualised return implied by its cash flows.
At a glance
| What it does | Internal rate of return on cash flows. |
|---|---|
| Category | Finance |
| Inputs needed | Initial investment, Yearly cash flows (comma separated) |
| Main output | IRR |
| Cost | Free — no sign-up, no download |
How to use the IRR Calculator
- 1Enter the upfront investment as a positive number.
- 2List each year's cash inflow separated by commas.
- 3Compare IRR to your hurdle rate.
Inputs explained
- Initial investment($)
- Enter the initial investment in $.
- Yearly cash flows (comma separated)
- Enter the yearly cash flows (comma separated) you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Initial investment50000 $
- Yearly cash flows (comma separated)12000, 15000, 18000, 20000
Results
- IRR10.41%
- Total cash returned$65,000.00
- Net profit$15,000.00
- Simple multiple1.3×
- NPV at 10%$489.72
Frequently asked questions
What is a good IRR?
It must exceed your cost of capital; private equity often targets 20%+.
Why can IRR be misleading?
It assumes reinvestment at the IRR itself and can produce multiple answers with alternating cash flows.
What do I need to enter into the IRR Calculator?
Just 2 values: initial investment, yearly cash flows (comma separated). Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the IRR Calculator work out the answer?
IRR is the discount rate at which a project's net present value equals zero — the annualised return implied by its cash flows. The working is shown step by step so you can verify the result by hand.
Is the IRR Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.