Hourly to Salary Calculator — UK & US Take-Home Pay

How is your hourly wage converted to an annual salary?

The conversion from an hourly rate to an annual salary is straightforward — but understanding what happens next, once tax and deductions are applied, is where most people get surprised. The calculator does all of this in real time, but the formula beneath it is worth knowing.

Knowing how to calculate annual salary from hourly rate is particularly useful when comparing a job offer expressed as an hourly wage against a salaried position. The standard full-time year in the UK is 37.5 hours × 52 weeks = 1,950 hours. In the US the convention is 40 hours × 52 weeks = 2,080 hours — which is why the same dollar-per-hour figure looks different in an annual context between the two countries.

Plain-English Walkthrough

Start with your hourly rate and multiply it by your weekly hours to get your weekly gross pay. Then multiply by the number of weeks you work in a year. Most people use 52, but if you are self-employed or take unpaid leave, adjusting the weeks figure gives a more accurate result. Overtime is added on top: overtime hours × rate multiplier × weeks gives the extra annual gross, which is then combined with your base salary before tax is calculated.

Once you have the gross annual figure, deductions follow a strict order in the UK: income tax is calculated first (personal allowance, then bands), then National Insurance, then student loan repayments if applicable, and finally any pension contribution under relief at source reduces the taxable income rather than the gross for NI purposes. If you want to understand how many working hours in a year UK employers expect, the standard answer is 1,950 — though contracts vary.

Named Scenario: Emma, Birmingham Healthcare Assistant

Emma is a healthcare assistant in Birmingham earning £15 per hour, working 37.5 hours a week for 52 weeks — a gross annual salary of £29,250. She has a Plan 2 student loan and contributes 5% to her NHS pension (relief at source).

Her pension reduces her taxable income to £27,787.50. Income tax: her personal allowance is £12,570 (correct as of 2026-05-02), leaving £15,217.50 taxable at 20% = £3,043.50. NI is calculated on the full gross (£29,250): £12,570 at 0%, then £16,680 × 8% = £1,334.40. Her Plan 2 student loan threshold is £27,295 — so she pays 9% on £1,955 = £175.95. Her pension deduction is £1,462.50. Total deductions: £6,016.35. Monthly take-home: approximately £1,936 — which is meaningfully different from the £2,437 monthly gross that first appears on her payslip. This is exactly the kind of gap a 15 pounds an hour is how much a year UK search is really asking about.

For a US comparison: Alex works 40 hours a week at $20 an hour — a gross annual salary of $41,600. For a single filer in 2025, after the $15,000 standard deduction, taxable income is $26,600. Federal tax comes to approximately $2,872. FICA adds $3,182 (Social Security $2,579 + Medicare $603). Monthly net: around $2,962. The full calculation — and a doughnut chart of where every dollar goes — appears instantly in the US mode above.

Internal link: to see how a full £29,250 salary looks with more advanced options like salary sacrifice or a specific tax code, use the UK Salary Calculator.

What does my hourly-to-salary result mean?

Your annual gross figure is simply the starting point. The number that matters for your day-to-day finances is take-home pay — what lands in your bank account after the government and other deductions have taken their share. Understanding the gap between these two numbers is the real purpose of a hourly to salary calculator after tax.

As a rough guide: at UK hourly rates below £12.21 (the National Living Wage for workers 21+ in 2025/26, correct as of 2026-05-02), you fall below the legal minimum for most workers — the calculator will show a low effective tax rate because you are under or near the personal allowance. Between £15–£20/hour (roughly £29,000–£39,000 annual), most people pay 20% income tax and 8% NI, giving an effective combined rate around 27–30%. Above £26/hour (~£50,000), you begin paying higher-rate tax at 40%: an important threshold to know when negotiating a pay rise.

For US workers: what is my monthly pay on 20 dollars an hour? At 40 hours/week that is $41,600 gross. For a single filer the estimated monthly take-home is around $2,962 before state tax. With a state like California (top marginal rate ~9.3%) that drops to around $2,590. With no state tax (Texas, Florida, etc.) it stays near $2,962.

UK-specific tips: how to improve your take-home

Salary sacrifice pension contributions are the most powerful lever available to UK hourly workers who are paid a gross salary. Unlike relief at source contributions (which this calculator models by default), salary sacrifice reduces your gross before both income tax and National Insurance are calculated — saving you up to 28% in combined deductions on every pound you contribute as a basic-rate payer. If you earn enough to cross the £50,270 NI Upper Earnings Limit, the NI saving on salary sacrifice drops to 2%, but the income tax saving at 40% remains significant.

Students on a Plan 2 loan need to be particularly aware of the £27,295 repayment threshold (correct as of 2026-05-02). Hourly workers whose income is near this threshold — for example someone on £15/hour doing seasonal overtime — can unexpectedly trigger repayments partway through the year. Unlike PAYE income tax, student loan deductions are not refunded at year end if your actual annual income stays below the threshold.

Scottish taxpayers earning between £43,662 and £75,000 face a 42% higher rate — six percentage points above the rest of the UK — making salary sacrifice even more valuable at that income level. Check the Scottish Taxpayer box to see the difference.

What are the most common hourly-to-salary mistakes?

The most frequent mistake is forgetting that converting an hourly wage to a salary uses gross pay — and then assuming that gross is what you will receive. The gap between £15/hour (£29,250 gross) and actual take-home can be over £4,000 per year once tax and NI are deducted. Budgeting from the gross figure leads to overspending.

Second: overlooking overtime. A self-employed hourly rate to annual salary calculation often ignores the irregular nature of hours worked. If you are a freelancer calculating your effective annual income, use the actual billable hours you expect to work — not 52 weeks at full capacity. Reducing weeks per year to your realistic working weeks gives a more honest income figure.

Third: comparing UK and US hourly rates directly. An hourly paycheck calculator US uses 2,080 hours as the standard working year; the UK standard is 1,950. The same hourly rate produces 6.6% more gross income in a US context before tax, which can make cross-border job offers look more favourable than they are. Always convert using your actual hours, and switch the market mode to compare like for like.

For more tools in this area, see the Time and a Half Calculator to model the exact value of overtime pay after tax, or the Compound Interest Calculator to see what consistently investing your tax saving could grow to.