Understanding Hourly to Annual Salary Conversion

Knowing how to convert an hourly wage into an annual salary is essential for comparing job offers, budgeting, and understanding your earning potential. In the UK, most full-time roles are based on a standard working week, but the exact hours can vary by industry and contract. This guide uses the latest official data to help you make accurate conversions and benchmark your pay.

The Basic Formula

The standard conversion from hourly rate to annual salary is:

Annual salary = hourly rate × hours per week × 52 weeks

For example, if you earn £15 per hour and work 37.5 hours a week, your annual salary would be £15 × 37.5 × 52 = £29,250. This assumes you are paid for every week of the year, with no unpaid leave. Many employers use 52 weeks, but if you have unpaid holidays, you may need to adjust. The Hourly to Salary tool on this site automates this calculation for different hours.

UK Benchmarks from Official Data

The Office for National Statistics (ONS) publishes the most authoritative earnings data through its Annual Survey of Hours and Earnings (ASHE). The latest figures for April 2025 show:

• Median full-time weekly earnings: £766.60
• Median full-time annual salary: £39,039
• Median full-time hourly pay (excluding overtime): £19.67

These figures represent the middle point of the earnings distribution – half of full-time employees earn more, half less. For part-time employees, median weekly earnings were £280.00. When converting the median hourly rate of £19.67 to an annual salary using a 37.5-hour week, you get approximately £38,356, which is close to the ONS annual figure of £39,039 (the small difference reflects variations in hours and pay periods).

National Living Wage and Minimum Wage

The government sets minimum hourly rates that directly affect annual salary calculations. As of April 2025:

• National Living Wage (21+ years): £12.21 per hour
• National Minimum Wage (18–20 years): £10.00 per hour
• National Minimum Wage (16–17 years): £7.55 per hour
• Apprentice rate: £7.55 per hour

For a worker aged 21+ on the NLW working 37.5 hours per week, the annual salary is approximately £23,809.50. This is the legal minimum, but many roles pay above this. The ONS low pay bulletin noted that only 2.5% of employee jobs were paid below the NLW in 2025, the lowest proportion since records began. For more context on how these rates compare across occupations, see our salary data page.

NHS Pay Scales as an Example

The NHS is one of the UK’s largest employers and its pay scales provide a clear illustration of how hourly rates translate to annual salaries. The NHS Employers website published the 2026/27 pay scales, effective from 1 April 2026. Key bands include:

• Band 5 (entry): £38,488 annual / £19.68 hourly
• Band 6 (entry): £47,951 annual / £24.52 hourly
• Band 7 (entry): £58,133 annual / £29.73 hourly
• Band 8a (entry): £66,274 annual / £33.89 hourly

These rates include Higher Cost Area Supplements (HCAS) for London and surrounding areas, which add a percentage uplift. For example, Band 5 entry with inner London HCAS rises to £46,852 annual. When comparing hourly to annual, note that NHS roles typically work 37.5 hours per week, so the conversion is straightforward. However, overtime and unsocial hours payments are additional.

Caveats and Considerations

When converting hourly rates to an annual salary, keep these points in mind:

• Hours assumption: The conversion uses a fixed weekly hours figure. Your contract may specify different hours (e.g., 35, 37.5, or 40). Always use your actual contracted hours.
• Overtime and bonuses: The formula above excludes overtime, performance bonuses, commission, or tips. These can significantly increase actual annual earnings.
• London weighting: Many employers in London and the South East add a location allowance. The NHS HCAS is one example; other sectors have similar adjustments.
• Part-time roles: For part-time workers, the annual salary is proportionally lower. Use your actual weekly hours in the formula.
• Tax and deductions: The annual salary figure is gross (before tax). The Personal Allowance for 2025/26 is £12,570, meaning you pay no income tax on the first £12,570 of earnings. National Insurance contributions also apply.

For a deeper dive into how different pay structures affect your take-home pay, explore our salary articles for guides on negotiating and understanding your contract.

Frequently Asked Questions

How do I convert my hourly rate to an annual salary?

Multiply your hourly rate by the number of hours you work per week, then multiply by 52 (weeks per year). For a typical full-time role of 37.5 hours per week, the formula is: annual salary = hourly rate × 37.5 × 52. For example, at the National Living Wage of £12.21 per hour (2025), the annual salary would be approximately £23,809.50. Always check your contract for exact hours and any overtime or shift allowances.

What is the median annual salary in the UK?

According to the ONS Annual Survey of Hours and Earnings (ASHE) for April 2025, the median gross annual earnings for full-time employees were £39,039. This is a 4.3% increase from £37,439 in 2024. For part-time employees, median weekly earnings were £280.00, which equates to roughly £14,560 annually if working year-round. These figures are provisional and exclude bonuses and self-employment income.

How does the National Living Wage affect annual salary calculations?

The National Living Wage (NLW) sets a minimum hourly rate for workers aged 21 and over. As of April 2025, the NLW is £12.21 per hour. For a full-time employee working 37.5 hours per week, this translates to an annual salary of about £23,809.50 before tax and National Insurance. The NLW is reviewed annually; the 2026/27 rate is expected to be announced by the government. Employers must pay at least this rate, so it serves as a floor for annual salary calculations.