Per Diem Travel Calculator
Total per-diem allowance for a business or government trip from a daily rate and trip length.
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Modeled on the US GSA convention of paying a reduced rate (commonly 75%) for partial travel days on the first and last day of a trip.
About the Per Diem Travel Calculator
The Per Diem Travel Calculator gives you an instant answer from just a few inputs — per diem rate (per day), trip length (days), first/last day rate. It runs entirely in your browser, so the numbers you enter stay private and never touch a server, and the result recalculates the moment you change a value. It's free to use with no sign-up, no limits, and nothing to install.
How to Use
- Enter Per diem rate (per day) into the first field of the Per Diem Travel Calculator.
- Fill in the rest: Trip length (days), First/last day rate.
- Your result appears instantly as you type — there's no submit button or page reload.
- Modeled on the US GSA convention of paying a reduced rate (commonly 75%) for partial travel days on the first and last day of a trip.
Frequently Asked Questions
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