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Figures are gross (before tax, National Insurance and pension). 52 paid weeks assumes paid holiday, which is the normal position for UK employees; casual workers paid only for weeks worked should lower the figure.
What The Hourly To Salary Calculator Works Out
- Annual salary: hourly rate x hours per week x paid weeks per year. GBP 15 an hour on a 37.5-hour week is GBP 29,250 a year. Full-time in the UK is usually 35, 37.5 or 40 hours, and the difference changes the answer by thousands.
- Hourly rate (salary to hourly mode): salary divided by paid weeks, then by weekly hours. GBP 30,000 over 52 weeks at 37.5 hours is about GBP 15.38 an hour.
- Monthly and weekly: the annual figure divided by 12 and by the number of paid weeks. Most employees are paid for 52 weeks because holiday is paid; zero-hours and casual workers should enter only the weeks they expect to work.
- Minimum wage check: flags any hourly figure below the National Living Wage for workers aged 21 and over (GBP 12.71 from April 2026, about GBP 24,785 a year full time). The Budget of 28 October 2026 set the rate from 1 April 2027 at GBP 13.21 (18 to 20: GBP 11.27; 16 to 17 and apprentices: GBP 8.31).
- Daily rate (advanced): weekly basic pay divided by working days, useful for comparing with contractor day rates. Contractor rates usually need to be 20% to 40% above the employee equivalent to cover holiday, pension and sick pay.
- Overtime (advanced): extra hours at a multiplier. There is no legal right to premium overtime pay in the UK, but time and a half (x1.5) is the most common where it is offered, with double time for Sundays and bank holidays in some sectors.
- Pension contribution (advanced): deducted from gross pay before income tax. Auto-enrolment minimum is 5% from the employee (including tax relief) with 3% from the employer; 5% to 10% is a typical range.
- Annual bonus (advanced): added to gross pay and taxed in the same way as salary.
- Estimated take-home (advanced): gross minus pension, income tax and National Insurance using current-year bands for England, Wales and Northern Ireland (Scotland has different income tax bands). Assumes a standard tax code, no student loan and no other income; a full-time worker on GBP 30,000 takes home roughly 80% of gross.
- Take-home per hour (advanced): net pay divided by all hours worked including overtime. This is the figure to compare against the value of your free time when deciding whether extra hours are worth it.
Source and further reading: GOV.UK: minimum wage rates.