These pay conversions and minimum wage rates apply across the UK. The linked employment rights calculators cover England, Scotland and Wales only.
Pro rata salary calculator
Enter the full-time salary and hours, then your own hours, to see your pro rata pay before tax.
Rates and rules used: Pro rata pay = full-time salary × (your hours ÷ full-time hours) × (paid weeks ÷ 52). Hourly equivalent = full-time salary ÷ (full-time hours × 52). The National Living Wage for workers aged 21 and over is £12.71 an hour from 1st April 2026. Sources: GOV.UK National Minimum Wage and National Living Wage rates; GOV.UK part-time workers' rights. Checked 17th September 2026. Rates are updated whenever the rules change, and checked at least every April.
How pro rata pay works
Part-time workers should not be treated less favourably than comparable full-time workers, so pay is usually worked out in proportion to the hours worked. If the full-time week is 37.5 hours and you work 22.5 hours, you receive 60% of the full-time salary.
Term-time and part-year contracts are often calculated differently, for example by including paid holiday within the weeks worked. Your employer's method may differ from the simple calculation here, so check your contract.
Common questions
Is pro rata salary before or after tax?
Before. Income Tax, National Insurance and any pension contributions are taken off afterwards.
Do part-time workers get pro rata holiday?
Yes. For workers with regular hours all year round, statutory holiday is 5.6 weeks of their own working pattern. Part-year and irregular-hours workers have separate rules. Use the annual leave calculator or the irregular hours holiday calculator.
This is general information, not tax or employment advice. The figures are simple gross pay estimates before deductions, not a payslip and not a minimum wage compliance check. Your employer may work out pay differently, so check your contract, and contact Acas or take advice if you are in a dispute. Rates checked against GOV.UK in September 2026.