Skip to main content

How to Calculate Per Diem

What is Per Diem?

A per diem calculator converts daily allowance rates to weekly or monthly totals and calculates the total reimbursement for a business trip. IRS per diem rates (updated annually) vary by location; high-cost cities like New York and San Francisco have higher rates. Per diems simplify expense accounting without requiring receipts.

Step-by-Step Guide

  1. 1Provide necessary inputs
  2. 2Review calculations

Worked Examples

Input
Enter the required values
Result
Result computed by the formula

Common Mistakes to Avoid

  • Measurement errors
  • Wrong assumptions

Frequently Asked Questions

What does this calculator do?

Provide necessary inputs

How do I use this calculator?

Review calculations

Ready to calculate? Try the free Per Diem Calculator

Try it yourself →

Settings

PrivacyTermsAbout© 2026 PrimeCalcPro