travel tools
Business Travel Per Diem Calculator
Estimate lodging, meals and incidental allowances for a multi-day business trip.
Private by design
Enter your values
The estimate updates instantly and stays in this browser.
One idea, three depths
Choose how deeply to explain Per diem
Per diem: Estimate lodging, meals and incidental allowances for a multi-day business trip.
Age 5 Explain it to a 5-year-old Start with a picture
Imagine checking the journey or vehicle measurements before setting out or changing a part. Estimate lodging, meals and incidental allowances for a multi-day business trip.
Age 15 Explain it to a 15-year-old Connect it to the formula
Estimate lodging, meals and incidental allowances for a multi-day business trip. Lodging uses trip nights, full meal rates apply to middle days, and the selected reduced percentage applies to first and last travel days. Change one input or choice at a time and compare the result to see which part of the rule it controls.
College Explain it at college level State the model precisely
The browser combines the supplied distance, vehicle measurements or costs using the stated travel formula. Lodging uses trip nights, full meal rates apply to middle days, and the selected reduced percentage applies to first and last travel days. Entries and results remain in this browser. Important results should still be checked against the records, standards, or rules that govern the real situation.
How this tool works
Lodging uses trip nights, full meal rates apply to middle days, and the selected reduced percentage applies to first and last travel days.
Privacy and limitations
Your entries and results stay in this browser. Check important results against the rules, records or systems that govern your situation.
Reuse the page responsibly Cite this page APA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). Business Travel Per Diem Calculator. MW SysArc Tools. https://travel.mwsysarc.com/per-diem-calculator
MLA 9
MW SysArc. “Business Travel Per Diem Calculator.” MW SysArc Tools, 21 July 2026, https://travel.mwsysarc.com/per-diem-calculator. Accessed 13 Aug. 2026.
Chicago 17
MW SysArc. “Business Travel Per Diem Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 13, 2026. https://travel.mwsysarc.com/per-diem-calculator.
Harvard
MW SysArc (2026) ‘Business Travel Per Diem Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://travel.mwsysarc.com/per-diem-calculator (Accessed: 13 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_per_diem_calculator_2026,
author = {{MW SysArc}},
title = {Business Travel Per Diem Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://travel.mwsysarc.com/per-diem-calculator},
note = {Published July 21, 2026; accessed August 13, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - Business Travel Per Diem Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-13
UR - https://travel.mwsysarc.com/per-diem-calculator
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the Per diem do?
Estimate lodging, meals and incidental allowances for a multi-day business trip.
How does the Per diem work?
Lodging uses trip nights, full meal rates apply to middle days, and the selected reduced percentage applies to first and last travel days.
What can I learn from the Per diem?
It shows how the entered values or choices produce the result. Change one input at a time to compare outcomes and understand the underlying rule.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as a practical reference. Review the inputs, assumptions and stated limitations before relying on it.
Last reviewed . Calculations tested .