How it works
Estimate simple payback with constant annual cash flows. It ignores discounting and cash flows after recovery.
years = initial outlay/annual cash inflow
Worked example
Show example inputs and result
Initial outlay: 20,000 · Annual net cash inflow: 5,000.
- Years
- 4
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy