What is the NPV & IRR Calculator?
Should you invest in a project, machine or business? Enter the initial investment and the expected cash flow for each year. NPV shows the value created at your required return (positive = good); IRR is the return the project earns; payback shows how long until you get your money back.
How to use the NPV & IRR Calculator
- Enter the initial investment (as a positive number).
- Enter yearly cash flows, one per line or comma separated.
- Enter your discount rate (required return).
Decision rules
- NPV > 0 → accept; NPV < 0 → reject.
- IRR > required return → acceptable.
- Shorter payback = lower risk.
This NPV & IRR Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech