Per Diem Calculator
Calculate per diem allowances for travel based on daily rate, number of days, and applicable deductions.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Per Diem Calculator
- Enter Daily Rate ($): Input the per diem amount you receive per day (e.g., 50.00). Must be a non-negative number.
- Enter Number of Days: Specify the total days (e.g., 5). Must be at least 1.
- Enter Deductions ($): Optional. Input any deductions (e.g., 20.00). Defaults to 0 if left blank. Must be non-negative.
- Click "Calculate": The calculator computes: (Daily Rate × Days) - Deductions.
- View Result: The total per diem amount appears in green. If deductions exceed the total, an error message will guide you to adjust inputs.
All inputs accept decimal values (e.g., 50.50). Use a period (.) as decimal separator.
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Frequently Asked Questions
Per diem is a daily allowance paid to employees for expenses incurred during business travel, such as meals and incidentals.
Total per diem is calculated by multiplying the daily rate by the number of days, then subtracting any deductions.
Yes, you can enter deductions (e.g., for meals provided by the employer) to get a net amount.
