Pro Rata Salary Calculator UK: Part-Time & Term-Time Pay

Pro rata means 'in proportion'. When a job advert says '£40,000 pro rata', it means the full-time equivalent salary is £40,000, but your actual pay will be calculated based on the hours you work. For example, if the full-time role is 37.5 hours per week and you work 22.5 hours (3 days), your actual salary would be £40,000 × (22.5 / 37.5) = £24,000.

Divide your actual weekly hours by the full-time weekly hours to get your FTE ratio, then multiply the full-time salary by this ratio. For example: full-time salary £50,000, standard 37.5 hours/week, you work 30 hours/week. Ratio = 30 / 37.5 = 0.8 (80% FTE). Your pro rata salary = £50,000 × 0.8 = £40,000.

No. Pro rata pay means the same hourly rate as the full-time role. Your hourly rate stays the same — you just work fewer hours. If a full-time role pays £40,000 for 37.5 hours/week, the hourly rate is about £20.51. If you work 22.5 hours/week pro rata, you'd earn £24,000 at the same £20.51/hour rate.

Pro rata employees are typically entitled to the same benefits as full-time staff, but calculated in proportion to your hours. This includes holiday entitlement (5.6 weeks pro rata), pension contributions, and sometimes bonuses. Check your contract — some benefits like private medical insurance may have a minimum hours threshold.

A £25,000 FTE salary at 3 days a week (22.5 hours out of a 37.5-hour week) is worth £15,000 pro rata. The hourly rate stays the same as the full-time role — you just work 60% of the hours. Use this calculator with your own FTE salary and hours for an exact figure.

Term-time only contracts reduce your pay further because you're paid for the weeks you work (typically 38-39 weeks per year) rather than the full 52 weeks. The calculation is: (weekly hours / full-time hours) × (working weeks / 52) × full-time salary. Some term-time roles spread the pay evenly across 12 months, while others only pay during term-time.

FTE stands for Full-Time Equivalent. A 1.0 FTE role is the standard full-time position for that organisation (usually 35-40 hours/week). A 0.6 FTE role means you work 60% of full-time hours. Your pro rata salary is simply the FTE salary multiplied by your FTE percentage. FTE is also used in budgeting and headcount reporting.

Yes. If you work additional hours beyond your contracted pro rata hours, you may be paid overtime at your standard hourly rate or a higher rate depending on your contract. Some pro rata roles include 'additional hours' pay for covering colleagues or working during peak periods.