IRR Calculator
| Initial Investment | - |
| Total Cash Inflows | - |
How the IRR Calculator Works
The IRR is the discount rate that makes the net present value of all cash flows (the initial outflow plus every future inflow) equal to zero. This calculator searches numerically for that rate assuming your annual cash inflow stays the same every year.
How to Use This Calculator
- Fill in the input fields with your own numbers.
- Click Calculate to instantly see your result.
- Change any value and recalculate as many times as you like - there is no limit on usage.
How to Print or Save This Page as a PDF
- Fill in your values and click Calculate.
- Click the Print link at the top of the page.
- In the print dialog, choose "Save as PDF" as the destination, keeping "Background graphics" turned on.
Frequently Asked Questions
What if my cash flows vary each year?
This simplified version assumes an equal cash inflow every year. For uneven cash flows, the same underlying principle applies, but the search needs the exact amount for each year.
Is this IRR Calculator free to use?
Yes, completely free, with no registration, download, or watermark - just enter your numbers and get an instant result.
Is my data stored or sent anywhere?
No - every calculation on this page runs locally in your own browser using JavaScript; nothing you type is uploaded, logged, or stored on any server.
Does this work on mobile phones?
Yes, the layout automatically adjusts for phones and tablets, so you can use this calculator on any device with a modern web browser.
Can I rely on this for financial or legal decisions?
This tool is designed to give a fast, well-informed estimate for everyday use. For decisions with financial or legal consequences, always confirm the figures with a qualified professional.