Converting Your Hourly Rate to Salary — The Mistake Everyone Makes

Search "hourly to annual salary" and you'll find dozens of calculators that multiply hourly rate × 40 hours × 52 weeks. This gives you a number — but it's often wrong for real-world budgeting. Here's why, and how to get the right figure.

Mistake 1: 52 Weeks × 40 Hours Ignores Holiday

If you work 40 hours a week and take 5.6 weeks of statutory leave (28 days), you work roughly 46.4 paid weeks per year — not 52. If you're paid for holiday, the gross is similar, but if you're self-employed or a contractor, you work about 46 billable weeks.

£20/hour × 40hrs × 46.4 weeks = £37,120 (not £41,600). That's a significant difference when budgeting.

Mistake 2: Confusing Gross and Net

The number calculators show (£41,600 in the example above) is gross. Your take-home at £41,600 gross is approximately £30,800/year (£2,567/month). For budgeting, you need the net figure.

Mistake 3: Not Accounting for Variable Hours

Zero-hours and casual workers often assume their highest weeks represent their average. If you average 32 hours per week rather than 40, your actual gross drops from £41,600 to £33,280 — a 20% reduction with a proportionate impact on take-home.

The Right Formula

1. Calculate actual average hours per week (track for 4 weeks if unsure)
2. Multiply by weeks worked (52 if employed and paid holiday, ~46 if self-employed)
3. That's your gross annual figure
4. Use a net pay calculator to find take-home

Frequently Asked Questions

What's the equivalent annual salary to £20/hour?

For a salaried employee working 37.5 hours/week: £20 × 37.5 × 52 = £39,000 gross. Take-home: approximately £29,700/year (£2,475/month).

How do contractors compare to salaried employees?

A contractor earning £20/hour needs to earn significantly more than a salaried employee to match, because they fund their own holiday, sick pay, employer pension contributions, and other benefits. A contractor day rate of £200/day (8hrs × £25/hr) might only net £180 after expenses and self-employment tax, making it equivalent to a salaried package of around £35,000.

Use our Hourly to Annual Salary Converter for the exact figures.