Time and a Half Calculator
The multiplier applies to the regular rate, not the base rate.
Work out Time and a Half. The multiplier applies to the regular rate, not the base rate. Counts the thing everyone forgets to count.
1.5 for time and a half, 2 for double time — set by contract or statute
Gross pay for the period
1,100.00
10 h at 30.00
The multiplier applies to the regular rate of pay, which in most jurisdictions includes non-discretionary bonuses and shift differentials rather than the base rate alone. Where it does, computing overtime off the base rate underpays.
How the Time and a Half Calculator works
Overtime at one and a half times, with the standard hours, premium hours and blended rate all separated out. The multiplier is editable, and the threshold is too, because which hours attract a premium is set by statute and contract rather than by arithmetic.
Also known as: how much is time and a half · overtime pay at 1.5x · overtime rate from hourly wage · what do i earn for overtime hours
The regular rate is not the base rate
Most overtime law applies the multiplier to a regular rate of pay, and that phrase is a term of art. It generally includes non-discretionary bonuses, shift differentials, and commission — anything that is part of normal remuneration rather than a genuine gift. Applying 1.5 to the bare base rate underpays wherever that is the rule.
The mechanics are averaging. Total earnings for the week, excluding genuinely excludable payments, divided by total hours, gives the regular rate. The overtime premium is then half that rate again for each overtime hour, on top of the straight-time earnings already counted. It is a different sum from simply multiplying a base rate by 1.5.
The awkward case is a bonus paid after the period it was earned in. Where the bonus is non-discretionary, it usually has to be allocated back across the weeks it covers and the overtime recalculated for each of them. It is one of the most commonly missed adjustments in payroll, and it is missed in the employer's favour every time.
Thresholds, and what counts towards them
Forty hours a week is the most familiar threshold and it is not the only one. Several jurisdictions apply a daily threshold as well, so a long day can attract overtime even in a week that never reaches forty. Contracts and collective agreements frequently set thresholds below the statutory one.
What counts towards the threshold matters as much as where it sits. Many systems count only hours actually worked, excluding paid holiday and sick leave. That means a week containing a public holiday can reach forty paid hours without triggering any overtime at all, which is a reliable annual source of confusion.
Exemption is the other half of the question, and it is decided by duties rather than by payment method. Salaried does not mean exempt in most systems: exemption typically requires both a minimum salary and a role genuinely meeting a defined test. Misclassification of salaried staff as exempt is common and expensive when found.
The blended rate, and what it is for
Total pay divided by total hours gives what you actually earned per hour across the period. Fifty hours at £20 with time and a half above forty comes to £1,100, which is £22 an hour blended rather than the £20 on the contract.
It is the honest number for comparing a heavy overtime role against a straight-time offer. A job at £24 an hour with no overtime beats one at £20 with ten regular overtime hours, despite the second appearing to pay more per week — and the blended rate is what makes that visible.
It is also the figure to watch over time. Sustained overtime raises the blended rate and disguises a base rate that has fallen behind the market, because the total looks acceptable. When the overtime dries up the shortfall arrives all at once, which is why the base rate rather than the blended rate is what belongs in a pay review conversation.
Where to go next
The Time and a Half question rarely arrives on its own. These are the ones that usually come with it:
- Double Time Pay Calculator — Usually a second threshold, not the first one.
- Shift Differential Calculator — The differential joins the regular rate for overtime.
- Timesheet Calculator — An out-time before the in-time is an overnight shift.
- Loan & EMI Calculator — Monthly payment, total interest, and a full amortization schedule.
Not financial advice. This calculator is for planning and illustration, not financial advice. Real products carry fees, taxes, and terms it does not model. Confirm figures with your lender or a qualified adviser before committing.
Frequently asked questions
How do I calculate time and a half?
Multiply the hourly rate by 1.5 for every hour above the threshold. At £20 an hour, overtime pays £30, so 50 hours with a 40-hour threshold is £800 plus £300, or £1,100.
What is the regular rate of pay?
In most overtime law it is not the base rate — it includes non-discretionary bonuses, shift differentials and commission, averaged over the period. Computing overtime off the base rate alone underpays, and it is the most common overtime error.
When does overtime start?
Commonly after 40 hours in a week, but several jurisdictions also use a daily threshold, and many contracts set their own. Some count only hours actually worked, excluding paid holiday, which changes the answer in a week containing a bank holiday.
Is time and a half legally required?
It depends entirely on where you work and whether your role is exempt. Some countries mandate a premium, some leave it to contract, and many exempt salaried professional and managerial staff. Check the rules for your jurisdiction and classification.
What is the blended rate?
Total pay divided by total hours — what you effectively earned per hour across the whole period. It is the figure to quote when comparing a heavy overtime week against a straight-time job offer.
Does a salary mean no overtime?
Not automatically. Salaried does not mean exempt in most systems: exemption usually turns on duties and a minimum salary threshold, and misclassifying a salaried worker as exempt is a common and expensive employer error.
Does paid holiday count towards the overtime threshold?
In many systems no — only hours actually worked count. That means a week with a public holiday can reach 40 paid hours without triggering any overtime, which surprises people every year.
Can my employer give time off instead of overtime pay?
Sometimes, under a formal arrangement, and the rules vary sharply. Where compensatory time is permitted it is usually required at the same premium — an hour and a half off for each overtime hour, not one for one.
Am I exempt from overtime?
Exemption usually turns on your duties and a minimum salary threshold rather than on being salaried. Misclassification is common, and the tests differ by country, so check against your own jurisdiction's criteria.
How is overtime calculated on two different rates?
Usually on a weighted average of the rates worked that week, which becomes the regular rate for the overtime premium. Applying whichever rate you happened to be on when the threshold was crossed is not correct.
Does a bonus change my overtime rate retroactively?
A non-discretionary bonus generally must be spread across the period it was earned and the overtime premium recalculated. It is one of the more frequently missed adjustments in payroll.
What if my employer refuses to pay overtime?
Keep your own contemporaneous record of hours — that record is often decisive. Most jurisdictions have a wage claim process with a time limit, so raising it promptly matters.
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