Pro Rata Salary Calculator
Calculate pro rata pay for part-time work, partial months, maternity leave or mid-month job changes. Pick a mode, enter your numbers, and compare the full-time amount with your adjusted pay side by side.
Worked fraction
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Your pro rata pay
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Full-time equivalent
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Side-by-side comparison
| Yearly | Monthly | Weekly |
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This is an estimate. Some employers count calendar days and others count working days for partial months, so confirm the rule in your contract. Your entries are saved in this browser only.
How to use
- Pick part-time hours mode or partial month mode.
- Enter the full-time salary and your actual hours, or days worked in the month.
- Your pro rata pay appears instantly next to the full-time equivalent.
Note: Hours mode — pro rata annual = full-time annual x your hours / full-time hours. Days mode — pro rata pay = monthly salary x days worked / days in month.
Tips
- Confirm whether your employer uses calendar days or working days for partial months.
- For maternity leave, check if the pay rate changes after a fixed number of weeks.
- Mid-month job changes usually mean each employer pays only for days you worked there.
- Hourly-paid staff can skip the fraction — just multiply hours by the hourly rate.