Payback Period Calculator

Compare cumulative cash flow with discounted cumulative cash flow for an initial investment.

Initial investment

Discount rate per period (%)

Future cash flows — one per period

—Regular payback

—Discounted payback

—Final cumulative flow

—Final discounted cumulative

Planning estimate only. Results depend on the values and assumptions you enter and are not financial, tax, legal, or lending advice.

How to use this Payback Period Calculator

Estimate regular and discounted payback period from periodic cash flows. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.