Salary vs Hourly Pay Calculator UK 2026/27

Salary vs hourly pay: what the difference actually means

Quick answer: A £40,000 salary on a 37.5-hour contracted week equals £20.51/hr gross. Salaried workers receive fixed pay regardless of hours; hourly workers are paid per hour, including overtime. Holiday pay, sick pay and unpaid overtime all affect the real hourly rate — often by more than people expect.

Salary and hourly pay look interchangeable on paper. In practice they behave very differently, and the gap between them grows the moment unpaid overtime, irregular hours or commuting are involved. Understanding the conversion — and where it breaks down — is the first step to comparing job offers fairly.

The key differences between salary and hourly pay

Why unpaid overtime changes the calculation so dramatically

The ONS Labour Force Survey consistently finds that UK employees work substantial unpaid overtime. If a salaried worker averages just five additional unpaid hours per week, the effective hourly rate falls by approximately 12% at any salary level:

Five hours of unpaid overtime per week reduces effective hourly pay by roughly 12% regardless of salary level. Hourly workers, by contrast, are paid for each hour worked and rarely face this erosion — which is why the comparison must use actual hours, not contracted hours.

Holiday pay: the often-missed difference

Salaried employees normally receive pay during statutory holiday as part of their annual salary. Hourly workers also have holiday rights, but the calculation depends on the contract and working pattern. For irregular-hours and part-year workers, statutory holiday entitlement can accrue at 12.07% of hours worked. If a quoted hourly or day rate does not include holiday pay, add it separately before comparing it with a salary.

What contractors and day-rate workers need to factor in

Workers comparing a day rate against a salaried role should allow for missing benefits such as employer pension contributions, paid holiday, sick pay and unpaid time between contracts. There is no universal uplift that makes a day rate equivalent to salary, so treat any break-even figure as a rough guide rather than a rule.

How to compare a salary and hourly offer step by step

The pros and cons of a salaried role

Fixed monthly pay makes budgeting straightforward, and most salaried roles come with a stronger benefits package — better sick cover, employer pension contributions, structured progression, sometimes extras like enhanced leave. The trade-off: extra hours are typically absorbed into the fixed pay with no additional compensation. Five unpaid hours a week quietly erodes the effective hourly rate by around 12%, and most people don't run that number until after they've accepted.

The pros and cons of hourly pay

You're paid for the time you give — and if the business needs more of it, the rate keeps running. Overtime pay (often 1.25–1.5× standard rate) makes extra hours genuinely rewarding, not just expected. The downside: income varies with hours, sick pay is usually statutory only (£123.25/week in 2026/27, or 80% of average weekly earnings if lower), and in sectors like retail, hospitality and care, guaranteed minimums aren't always on the table.

Overtime: what changes when extra hours creep in

For salaried roles, overtime pay depends on the contract. Extra hours are often treated as part of the job, which means the real hourly rate falls as the week gets longer. Hourly roles are simpler: extra hours usually mean extra pay, sometimes at a higher rate. The key check is simple — compare the pay against the hours people actually work, not just the hours written on the offer.

How to compare salary and hourly pay on a level playing field

One formula does the job:

That's the contracted rate — accurate only if actual hours match contracted hours. If the same person works 42.5 hours instead of 37.5, the rate drops to £13.57/hr. That ~£1.81/hr gap widens at higher salaries and is the most common reason a role that looked competitive turns out not to be. The True Wage calculator does this automatically, including commuting costs.

What the headline offer can hide

An offer letter might list the salary, holiday allowance, pension and bonus. What it usually won't show is how those pieces feel in real life: how often people stay late, whether breaks are paid, how much the commute eats into take-home pay, how reliable bonuses are, and whether pay reviews actually happen. Those details are what turn a good-looking number into a good deal — or not.

Which is actually better — salary or hourly pay?

Salary wins if you want predictability, a full benefits package and career progression — and if the role genuinely doesn't involve much unpaid overtime. Hourly wins if you want pay that directly reflects your time, especially where overtime is well-compensated. In skilled trades, healthcare, engineering contracting and tech consulting, experienced workers often earn more per hour on hourly terms than their salaried equivalents. The structure doesn't determine the value — the numbers do.

The most common mistakes when comparing salary and hourly pay

Not checking whether holiday pay is included in a quoted hourly rate. Ignoring unpaid overtime when comparing salaries — a £45k salary at 45hrs/week pays less per hour than a £40k role at a genuine 37.5. Treating pension, sick pay and holiday as extras rather than quantifiable pay. Assuming salary signals higher status (it doesn't). Assuming hourly always means less secure (it doesn't — contract terms matter more than pay structure). And not looking at total annual earnings before treating any figure as the final answer.

Questions worth asking before you accept a salaried or hourly role

How many hours are actually expected each week — not contracted minimum, but real expectation? Is overtime paid, and at what rate, or just absorbed? Are breaks paid? What does sick pay look like (days, rate)? How many holiday days and are bank holidays additional? What's the employer pension contribution? Are hours guaranteed, or is this effectively zero hours? And when was pay last meaningfully reviewed? The offer letter rarely answers all of these. The contract does.