Use the free Overtime Pay Calculator below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
What Time-and-a-Half Really Means
Overtime pay is extra pay for hours worked beyond a normal working week, usually at a higher rate than normal hours. The most common premium is time and a half, which means each overtime hour pays 1.5 times your normal hourly rate. If you earn 20 an hour, an overtime hour pays 30. This calculator adds regular pay and overtime pay together, shows each part separately, and shows the premium itself, which is the extra amount overtime earns above normal pay.
That separation matters, because overtime can look like a large raise while depending entirely on extra hours. Five overtime hours a week at 20 an hour adds 150 a week, or 7,800 a year, which is a serious sum. But if overtime dries up, that income disappears overnight, while rent and bills stay the same. Seeing regular pay and overtime pay side by side helps you budget on the stable part and treat overtime as a bonus, not as core income.
How the Calculator Works
Enter your normal hourly rate, your regular hours, and your overtime hours for the week. The default multiplier is 1.5, but you can change it: some contracts pay double time on Sundays or public holidays, some pay 1.25 for the first overtime hours and more after that, and some pay no premium at all for salaried staff. The calculator multiplies regular hours by the normal rate, multiplies overtime hours by the rate times the multiplier, and adds the two totals.
The output also shows your overtime hourly rate and your total hours, so you can check the maths at a glance. If the overtime rate looks wrong, check the multiplier first, because a multiplier of 1.5 entered as 150, or a rate entered as a weekly salary instead of an hourly rate, are the two most common input errors.
A Worked Example
Now change the multiplier to double time, as some weekend contracts require. Overtime pay becomes 352, total pay becomes 1,232, and the premium becomes 176. Same hours, same base rate, but 88 more per week, purely from the contract terms. That is why two workers doing identical overtime can take home different pay, and why reading the overtime clause in your contract matters as much as reading the headline rate.
When Overtime Starts
Daily overtime is a useful example. A worker who does 10 hours on Monday and 6 hours on Tuesday has worked 16 hours over two days, but may still earn daily overtime for the two extra hours on Monday, even though the weekly total is normal. A weekly-only calculator would miss that. If your contract uses daily thresholds, calculate each day separately and add the days together for the true total.
The Cost of Overtime Beyond Money
Overtime pays more per hour, but it costs time, rest, and health. Regular overtime over months is linked to fatigue, mistakes, and burnout, and the extra pay rarely compensates for lost evenings, missed family time, or poorer sleep. A useful test is to ask whether you would still choose the overtime if it paid only your normal rate. If the answer is no, you are selling time you value highly, and the premium should be high enough to make that trade worthwhile.
Employers face the other side of the same trade. Overtime is flexible, because it can be switched on in busy weeks and off in quiet ones, but it is expensive per hour and it tires the workforce. That is why many employers prefer hiring extra staff for sustained demand and using overtime only for short peaks. If your overtime has become permanent, it may be a sign the team is understaffed, not a sign that overtime is a good long-term deal for either side.
Frequently Asked Questions
Is overtime pay taxed differently? Usually no. Overtime pay is normally taxed like other pay, though a large overtime week can push you into a higher tax band for that period or trigger higher withholding that is corrected later. The calculator shows gross pay, before tax.
Does paid time off count toward overtime? It depends on the contract. Some employers count only hours actually worked toward the overtime threshold, so a week with a holiday may need more extra hours before overtime starts. Check your policy.
What if I am salaried? Many salaried workers receive no overtime pay at all. In that case, divide your salary by your real weekly hours to find your effective hourly rate, and judge whether extra hours are fairly rewarded in other ways.
Use the tool above to check any overtime week before you accept it, and budget on regular pay first.
Disclaimer: The results shown by this tool are ESTIMATES only. They are for education and planning, not financial or tax advice. Your real amounts will differ because rates, taxes, fees and prices change. Talk to a qualified financial or tax professional before you make a money decision.
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