Prorata Calculator
Calculate Your Pro Rata Salary — Instantly & Accurately
Free, accurate, and instant. Enter your full-time salary and hours to calculate your pro rata pay — perfect for part-time workers, term-time staff, teachers, and job offer comparisons.
Pro Rata Salary Calculator
Pro Rata Salary Calculator
Choose your currency, enter your salary and hours — results appear instantly.
Enter your salary and hours above — results will appear here.
What Is a Pro Rata Salary?
A pro rata salary is a proportion of a full-time annual salary, adjusted to reflect the hours or days you actually work. If you work part-time, term-time only, or reduced hours, your employer calculates your pay “pro rata” — meaning in proportion to a full-time equivalent (FTE) role. For example, if a full-time role pays £30,000 a year for 37.5 hours a week, and you work 20 hours a week, your pro rata salary would be £16,000 a year. Our calculator does this maths for you instantly, whether you’re comparing a job offer, checking a payslip, or planning a move to part-time hours.
Who We Are
About Pro Rata Salary Calculator
At Pro Rata Calculator, we simplify payroll and workforce management for modern businesses. Our smart tools empower HR professionals, recruiters, and business owners to calculate part-time salaries, pro-rata benefits, and working hours with absolute accuracy. We eliminate the guesswork so you can focus on scaling your business efficiently.
How to Calculate Pro Rata Salary (Formula Section)
The Pro Rata Salary Formula
Pro Rata Salary= (Full-Time Salary ÷ Full-Time Hours) × Your HoursStep-by-step example:
- Full-time salary: £35,000 per year
- Full-time hours: 37.5 hours per week
- Your hours: 22.5 hours per week
- Hourly rate: £35,000 ÷ 37.5 = £933.33 per hour… (worked as weekly/annual rate)
- Pro rata salary: £35,000 × (22.5 ÷ 37.5) = £21,000 per year
You don’t need to do this by hand — just enter your numbers above and get an instant result.
How It Work
Why Thousands of UK Workers & HR Teams Use This Calculator
Built for the 2026/27 UK tax year. Personal allowance, basic & higher rate bands, NI thresholds, and National Minimum Wage rates are all current
Who Uses This Calculator
- Part-time employees comparing a full-time salary against part-time hours
- Term-time only staff (especially in schools) working out annual pay across term weeks
- Teachers and support staff calculating pro rata pay for reduced timetables
- Job seekers comparing full-time job adverts against the part-time hours they want
- HR and payroll teams double-checking pro rata calculations
- Employees reducing their hours and wanting to know their new salary before agreeing to a change
What Our Clients Are Saying.
Read how our precise pro-rata tools and scalable HR solutions are helping businesses and HR professionals manage part-time payroll with absolute confidence.
Term-Time & School Pro Rata Pay
How Do You Work Out Term-Time Pro Rata Salary?
Term-time pro rata pay is slightly different from standard part-time pro rata, because it accounts for weeks actually worked across the school year (usually around 38–39 weeks, plus holiday pay entitlement) rather than a simple weekly hours ratio. Our calculator supports both standard part-time and term-time calculations, so school staff, teaching assistants, and term-time-only employees can get an accurate figure — not just a rough estimate.
Why Use This Calculator Section
Why Use Our Pro Rata Calculator?
- Instant results — no signup, no spreadsheets, no waiting
- Accurate formulas — built on standard UK payroll calculation methods
- Covers part-time, term-time, and reduced-hours scenarios
- Free to use, every time
- Mobile-friendly — check your pro rata pay on the go
