What this calculator does
Find out what you'll earn this week once overtime is added in. When you work more than a set number of hours in a week, the extra hours usually pay more. Under the federal Fair Labor Standards Act, most hourly workers must get at least one and a half times their normal rate for each hour over 40 a week. The calculator splits your week into regular and overtime hours. It works out the pay for each, then adds them up to your gross pay, your pay before taxes.
You can enter your total hours and let the calculator find the overtime. Or, if daily overtime rules or a contract apply, enter regular, overtime and double-time hours yourself. It also shows your overtime premium, the extra pay above your normal rate. That number matters for the federal tax deduction for qualified overtime pay. The deduction is available in tax years 2025 through 2028, including 2026. All figures are gross pay before tax. They're an estimate, not tax or legal advice.
Where it's used
Why this math matters outside the classroom:
- Weekly pay. Working 45 hours at $20 an hour with time-and-a-half after 40 pays $800 plus $150, or $950.
- Overtime rate. Multiplying a $18.50 hourly rate by 1.5 gives an overtime rate of $27.75.
- Checking a paycheck. Hourly workers compare the hours and rates on a pay stub with their own records of the week.
- Scheduling staff. Managers estimate the cost of adding overtime shifts compared with hiring extra part-time help.
How to use it
- Choose whether to enter your total hours, or your regular and overtime hours separately.
- Enter your normal hourly rate and your hours. If you entered total hours, set when overtime starts (40 hours unless you change it).
- Keep the 1.5 multiplier for time and a half, or change it for double time or a contract rate.
- Read the week's gross pay, your overtime pay and premium, and the yearly figure for the weeks you expect to work this way.
What the inputs mean
- Overtime starts after
- Federal law counts overtime by the week, not by the day. It also doesn't let an employer average two weeks together. A few states also require daily overtime, for example after 8 hours in a day. For those, enter your regular and overtime hours separately.
- Double-time hours (optional)
- Some state rules and union contracts pay double for very long days, the seventh day in a row or holidays. These hours are paid at exactly 2× your normal rate.
- Overtime multiplier
- Your overtime rate is your normal rate times this number. 1.5 is the federal minimum for covered workers. Some employers or contracts pay 2 or another rate.
- Weeks a year at this schedule
- The yearly figure multiplies this week by the number of weeks. If your overtime is seasonal, enter fewer weeks.
Formula and method
overtime hours = max(0, total hours − threshold) overtime rate = regular rate × multiplier gross pay = regular hours × rate + overtime hours × overtime rate + double-time hours × 2 × rate overtime premium = overtime hours × rate × (multiplier − 1) + double-time hours × rate yearly gross = weekly gross × weeks
The threshold is the number of hours a week before overtime starts, and the multiplier is how many times your normal rate overtime pays. max(0, …) means the answer can't go below zero.
Overtime pay has two parts. First is the straight-time pay you'd get for any hour. Then the premium comes on top. With time and a half, each overtime hour pays your normal rate plus half again. That extra half is the premium.
Your average pay per hour is your total gross pay divided by all the hours you worked. It goes up as you work more overtime, because more of your hours are paid at the higher rate.
Worked example
You earn $20 an hour and work 50 hours this week. Overtime starts after 40 hours at time and a half.
- Overtime hours: 50 − 40 = 10.
- Regular pay: 40 × $20 = $800.
- Overtime rate: $20 × 1.5 = $30; overtime pay: 10 × $30 = $300.
- Gross pay: $800 + $300 = $1,100, an average of $22 an hour.
- Overtime premium: 10 × $20 × 0.5 = $100. Every week like this for 52 weeks: $1,100 × 52 = $57,200.
Result: The week's gross pay is $1,100. Of that, $300 is overtime pay and $100 is the overtime premium.
Understanding the result
Compare your average pay per hour with your normal rate to see what overtime is really adding. Ten hours of time and a half on top of a 40-hour week raises your average by 10%.
The premium is the part of overtime pay above your normal rate. For 2026, federal law lets you deduct qualified overtime premium pay, up to $12,500 a year ($25,000 on a joint return). The limit shrinks at higher incomes.
This deduction lowers federal income tax, not Social Security or Medicare. The amount that qualifies should appear on your W-2 or pay records.
Assumptions and limitations
- It covers one workweek at a single normal hourly rate. That rate doesn't include bonuses, shift differentials (extra pay for certain shifts) or commissions.
- When you enter total hours, overtime is every hour that week above the threshold.
- The yearly figure repeats this week, unchanged, for the number of weeks you enter.
- It shows gross pay only, with no income tax, Social Security, Medicare or other deductions taken out. For take-home pay, use the paycheck calculator.
- This is an estimate, not legal or tax advice. Whether you're owed overtime depends on your job duties, salary level and state law. Salaried workers who are "exempt" usually aren't.
- Your pay may include bonuses promised for hitting goals (called non-discretionary bonuses), or more than one hourly rate. Then the legal regular rate is a weighted average. This calculator doesn't work that out.
Frequently asked questions
How do I calculate time and a half?
Multiply your hourly rate by 1.5 to get the overtime rate. Then multiply that by your overtime hours. At $18 an hour, the overtime rate is $27, so 6 overtime hours pay $162.
Does overtime start after 8 hours a day or 40 hours a week?
Federal law uses 40 hours in a workweek, no matter how the hours are spread across the days. Some states add daily overtime, such as after 8 or 12 hours in a day. If daily rules apply to you, add up those hours yourself. Then enter regular and overtime hours separately.
Is overtime taxed at a higher rate?
No. Overtime is taxed like any other wages. A bigger paycheck can have more tax withheld, because withholding acts as if you earned that much every payday. But your actual tax gets settled on your tax return. For 2025 through 2028, the overtime premium may also qualify for a federal income tax deduction.
What is the overtime premium?
It's the extra amount paid above your normal rate for overtime hours. With time and a half at $20 an hour, each overtime hour pays $30. That's $20 of straight time plus a $10 premium.
Do salaried employees get overtime?
Some do. Salaried workers who earn below the federal salary threshold are owed overtime like hourly workers. So are those whose duties don't meet an exemption test. To use this calculator for them, turn the salary into an hourly rate first.
How this calculator is checked
Method: Weekly overtime arithmetic: regular hours × rate + overtime hours × rate × multiplier (+ double time at 2×); the 40-hour, 1.5× default follows the federal Fair Labor Standards Act and is adjustable. The calculation is covered by automated tests with known reference values and edge cases. Last updated 2026-10-18. Found a problem? Tell us.
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