How the conversion works
No estimation — the same arithmetic payroll uses. Rate times weekly hours gives the week; the week times paid weeks gives the year; the year divides into months. Paid holiday counts as paid weeks, which is why 52 is the right default for almost every UK employee.
annual gross = hourly rate × hours per week × paid weeks per yearWorked example · £15 an hour, 37.5 hours, 52 weeks
- £15 × 37.5 hours = £562.50 a week.
- £562.50 × 52 weeks = £29,250 a year (1,950 hours).
- That is £2,437.50 a month — before tax and National Insurance.
From gross to what you keep
Everything here is gross. The deductions story — Personal Allowance, income tax bands, National Insurance — is the UK salary calculator’s job, and the result panel links there with your annual figure filled in. Comparing an hourly offer against a salaried one? Convert first, then compare take-homes on the take-home pay calculator.
What’s included, and what isn’t
Every figure this calculator produces is an estimate. Here is exactly what it accounts for, and what it does not.
What’s included
- Exact conversion of an hourly rate to weekly, monthly and annual gross pay.
- Your real schedule: any hours per week, and unpaid weeks if you have them.
- The annual hours behind the conversion, shown so you can check the working.
What’s not included
- Income tax and National Insurance — this is gross pay. The UK salary calculator estimates the deductions.
- Overtime premiums, which UK law leaves to your contract rather than mandating a rate.
- Holiday pay accrual rules for irregular-hours workers, which your employer calculates separately.
What this calculator assumes
- Multiplies your hourly rate by the hours and paid weeks you enter — nothing is estimated.
- The UK full-time convention is around 37.5 hours a week; enter your real hours instead of assuming it.
- Paid holiday counts as paid weeks — most UK employees are paid for 52 weeks.
- All results are gross pay. Income tax and National Insurance come out afterwards.
Sources
Every rate and threshold above is transcribed from a primary source and re-checked on the date shown.
Frequently asked questions
How do I convert a UK hourly rate to an annual salary?
Multiply the rate by your weekly hours, then by your paid weeks. The common UK full-time pattern is 37.5 hours over 52 paid weeks — paid holiday counts as paid weeks, so most employees use 52 even though they work fewer. This calculator uses your actual numbers instead of assuming the pattern.
How much is £15 an hour per year in the UK?
At 37.5 hours a week for 52 paid weeks, £15 an hour is £29,250 a year — £2,437.50 a month, £562.50 a week, all before tax and National Insurance.
Is 37.5 or 40 hours the right number to use?
Whichever your contract says. British full-time contracts commonly specify 37.5 hours (a 9-to-5:30 with an unpaid lunch hour) while some industries run 40. The difference matters: at the same rate, 40 hours produces about 6.7% more annual pay than 37.5 — enter your real contracted hours.
Does the result account for the minimum wage?
No — it converts whatever rate you enter. If you want to sanity-check a rate against the legal floor, GOV.UK publishes the current National Minimum and Living Wage rates by age; the source link below goes straight there.
Is this before or after tax?
Before — the conversion produces gross pay. To see what it leaves after income tax and National Insurance, the result panel sends your annual figure straight into the UK salary calculator with one click.