Per Diem Formula:
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Definition: This calculator computes the total per diem allowance for military personnel based on the daily rate and number of travel days.
Purpose: It helps military members and finance offices accurately calculate travel reimbursement amounts for official duty travel.
The calculator uses the formula:
Where:
Explanation: The daily rate is multiplied by the number of authorized travel days to determine the total reimbursement amount.
Details: Proper calculation ensures service members receive correct reimbursement for meals and incidental expenses during official travel.
Tips: Enter the current per diem rate (check JTR for current rates) and the number of authorized travel days. All values must be > 0.
Q1: Where do I find current per diem rates?
A: Rates are published in the Joint Travel Regulations (JTR) and on the Defense Travel Management Office website.
Q2: Are partial days calculated differently?
A: Yes, partial travel days are typically calculated at 75% of the daily rate - this calculator assumes full days only.
Q3: Does this include lodging expenses?
A: No, this calculates M&IE (Meals and Incidental Expenses) only. Lodging is reimbursed separately.
Q4: How are international rates determined?
A: International per diem rates are set by the State Department and vary by location.
Q5: Is this calculator official for reimbursement?
A: No, this is for estimation only. Always consult your finance office for official calculations.