Calculate simple payback period from your own figures.
Calculated in your browser. No account required. Illustrative estimate. Review the assumptions before using the result.View calculation table
How this calculation works
Payback = Initial investment ÷ Annual cash inflow
Enter the labelled inputs. Percent fields use 5 for 5%. Approximation for even inflows; ignores time value.
A worked example
Initial investment: 10000 USD; Annual cash inflow: 2500 USD. Simple payback period: 4.
Assumptions and limitations
Approximation for even inflows; ignores time value. All monetary inputs must use one currency and time period unless conversion is explicit. Manual inputs only; no live prices or official rule tables.
Common questions
Why can my actual result differ?
Approximation for even inflows; ignores time value. All monetary inputs must use one currency and time period unless conversion is explicit. Manual inputs only; no live prices or official rule tables.
Are my inputs saved?
The calculator code processes inputs within your browser and does not send them to our server or save them in browser storage. Downloads and copied summaries remain under your control.