Net Present Value of a project by discounting a series of yearly cash flows at your required rate of return.. NPV Calculator is a free online tool from the ToolsRift Finance & Health Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Enter the initial investment, your discount rate and each year's cash flow. The calculator discounts them all and shows the project's Net Present Value.
NPV sums each year's cash flow discounted to today: NPV = Σ CFt / (1 + r)^t, minus the initial outlay. A positive NPV means the project adds value.
A positive NPV means the discounted returns exceed the cost, so the project is worth doing. A negative NPV means it destroys value at your required rate.
Use your required rate of return or cost of capital. A higher discount rate lowers NPV, reflecting greater risk or a higher opportunity cost of funds.