GSA Per Diem Calculator 2025

Per Diem Formula:

\[ \text{Per Diem} = \text{Rate} \times \text{Days} \]

Per Diem Amount ($):

Definition: This calculator estimates the total per diem amount based on the daily rate and number of days.

Purpose: It helps government employees, contractors, and travelers calculate their daily allowance for official travel in 2025.

The calculator uses the formula:

\[ \text{Per Diem} = \text{Rate} \times \text{Days} \]

Where:

Explanation: The daily rate is multiplied by the number of travel days to calculate the total per diem amount.

Details: Accurate per diem calculation ensures proper reimbursement for travel expenses and compliance with federal travel regulations.

Tips: Enter the daily rate in dollars and the number of travel days. All values must be > 0.

Q1: Where can I find the official GSA per diem rates?
A: Rates are published annually on the GSA website (www.gsa.gov).

Q2: Do rates vary by location?
A: Yes, rates vary by geographic location and time of year.

Q3: What's included in the per diem rate?
A: The rate covers lodging, meals, and incidental expenses.

Q4: How are partial days calculated?
A: Typically, partial travel days are reimbursed at 75% of the daily rate.

Q5: Are there different rates for different travelers?
A: Yes, rates may differ for federal employees, military personnel, and contractors.