NPV Calculator
Discount a series of cash flows to a net present value.
Judge an investment with NPV
Net present value is the standard way to decide whether an investment is worth it: discount every future cash flow back to today and subtract what you put in. A positive result means the project beats your required return.
Enter a negative initial outlay followed by each period’s inflow and a discount rate, and it sums the discounted flows. If the total is above zero, the investment adds value at that rate; below zero, it does not.
Rigorous and private
It discounts each cash flow by its period in your browser, so the analysis stays on your device with nothing uploaded.
Frequently Asked Questions
What is NPV?
Net present value sums all future cash flows discounted to today, minus the initial outlay. A positive NPV means the investment adds value at your chosen rate.
How do I enter cash flows?
One amount per line, starting with the initial investment as a negative number, then each period’s inflow.
What rate should I use?
Your required return or cost of capital. A higher rate discounts future cash more heavily and lowers NPV.
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