Federal Per Diem Calculator 2025

Per Diem Formula:

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

Per Diem Amount ($):

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1. What is a Federal Per Diem Calculator?

Definition: This calculator computes the total per diem amount based on the daily rate and number of travel days for federal employees in 2025.

Purpose: It helps government employees and contractors estimate travel reimbursement amounts according to federal per diem rates.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

Per Diem — Total reimbursement amount (dollars)
Rate — Daily per diem rate (dollars/day)
Days — Number of travel days (days)

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

3. Importance of Per Diem Calculation

Details: Accurate per diem calculations ensure proper travel reimbursement, budget planning, and compliance with federal travel regulations.

4. Using the Calculator

Tips: Enter the daily per diem rate (check GSA website for 2025 rates) and the number of travel days. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find the official 2025 per diem rates?
A: Rates are published annually by the General Services Administration (GSA) at www.gsa.gov/perdiem.

Q2: Does this include the first and last day of travel?
A: Federal per diem rules typically provide 75% of the daily rate for partial travel days (first/last day).

Q3: Are meals and lodging included in this rate?
A: The standard per diem rate includes both meals and incidental expenses (M&IE) plus lodging.

Q4: How does location affect the rate?
A: Rates vary by location - higher for expensive cities, lower for rural areas. Check GSA tables for specific locations.

Q5: Is this calculator only for federal employees?
A: While designed for federal travel, it can be used by anyone needing to calculate per diem amounts.