How long an investment takes to recover its initial cost from annual cash inflows, in years and months.. Payback Period 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 and each year's cash inflow. The calculator adds them until the cost is recovered and shows the payback period in years and months.
It is the time needed for cumulative cash inflows to equal the initial investment. A shorter payback means you recover your money faster with less risk.
Cash inflows are added year by year until they reach the initial cost. The fractional final year is prorated to express the answer in years and months.
Payback ignores the time value of money and any cash flows after recovery, so pair it with NPV or IRR for a complete view of a project's profitability.