ProRata CalculatePro Rata Hourly Rate Calculator — An Hourly Wage Calculator for Salaried Jobs
Convert a salary to an hourly wage, or an hourly wage back into a salary, so a salaried post and an hourly-paid one can be compared honestly.
Hourly Wage Calculator
One year of work is 52 weeks of contracted hours. That single fact powers both conversions.
Salary to hourly wage
Hourly wage: — · Weekly pay: —
Hourly wage to salary
Annual salary: — · Monthly: — · Weekly: —
The hourly wage is the fairness test
Here is the quickest audit in all of part-time employment. Take the full-time salary from the advert and convert it to an hourly wage using the full-time hours. Now take the pro rata salary you were offered and convert it using your hours. A genuine pro rata offer returns the same rate twice, to the penny. A lower second rate means the reduction took more than hours into account — and the difference, multiplied by your hours and 52 weeks, is exactly what the error costs you per year. People searching for an hourly wage calculator are usually checking a payslip, comparing two adverts, or pricing freelance work against a salaried past; all three jobs start with that same division.
One caution for hourly-paid roles: since April 2024, employers of irregular-hours workers may pay holiday as a 12.07% uplift on the hourly wage (“rolled-up” pay). A rate quoted as “£15.20 including holiday pay” is really £13.56 plus holiday money. Strip the uplift out before comparing with a salaried rate, or the hourly job will look better than it is.
Conversion examples
Care coordinator, £34,200 at 36 hours. £34,200 ÷ (36 × 52) = £18.27 an hour, £657.69 a week. Offered at 24 hours, the pro rata salary should be £22,800 — and £22,800 ÷ (24 × 52) is again £18.27, confirming the offer is clean.
Weekend retail, £16.50 an hour at 27.5 hours. Annual equivalent: £16.50 × 27.5 × 52 = £23,595, or £1,966.25 a month. Set against a salaried part-time post at £22,900 for the same hours, the hourly role pays more gross — before you weigh guaranteed hours, pension and sick pay, which the headline rate never shows.
Questions people ask
Divide the annual salary by hours per week times 52. £34,200 at 36 hours a week is £34,200 ÷ 1,872 = £18.27 an hour. Use contracted hours, not the hours you happen to stay late — unpaid extras are a separate conversation.
A year contains 52 weeks plus one day (two in a leap year), so 52.14 is the pedantically exact divisor. It produces a rate about 0.3% lower. Either convention is defensible; what matters is that your employer uses the same one for part-time and full-time staff alike.
Check three things: whether your payslip shows the rate before or after a recent rise, whether your salary figure includes an allowance the rate excludes, and whether your contracted hours changed. If all three match and the rate still differs, send payroll both calculations — a genuine error is usually a stale hours figure in their system.
No — and that is the point of this page. The hourly wage is the invariant in any honest pro rata deal. Salary, leave and totals shrink with hours; the rate must not. If a part-time offer shows a lower rate than the full-time advert for the same job, use the figures from here to query it.
Convert the hourly job upwards with the second calculator: rate × hours × 52 gives the annual equivalent. £16.50 at 27.5 hours is £23,595 a year. Then compare like with like — and remember the salaried figure usually includes paid leave within it, while hourly adverts sometimes quote the rate with holiday pay rolled up on top.
Rates used: UK tax year 2026/27 · Last reviewed: October 2026. Calculations run in your browser — nothing you type is sent anywhere or stored by us.