Overtime Pay, Explained
After reading this you can add up a pay period from regular hours, time-and-a-half hours and double-time hours, and work out the blended average rate you actually earned per hour.
What overtime pay is
Overtime pay is a higher hourly rate for hours worked beyond a threshold. The most common rule in the US is time-and-a-half (1.5×) for hours past 40 in a week. Some contracts and jurisdictions add double time (2×) for holidays, seventh consecutive days, or hours past a second threshold.
Here is the hook. Suppose you earn 25 per hour and work a 160-hour period, plus 10 hours at 1.5×. Your regular pay is 25 × 160 = 4000. The overtime pay is 25 × 1.5 × 10 = 375. Total is 4375. You worked 170 hours, so your average rate was 4375 ÷ 170 ≈ 25.74 per hour. The 10 overtime hours lifted your effective rate by about 74 cents across the whole period, not by the full 12.50 the premium was worth on those hours alone.
That gap between the premium rate and the blended rate is the point most people miss, and it is what this guide makes concrete.
When to use this, and when not
Use this calculation when you are paid by the hour and your hours vary. It answers three practical questions: how much this specific pay period will total, what your average earned rate is, and how much of your pay comes from the premium rather than the base.
Do not use it as a net paycheck. This figure is gross pay, before tax and other deductions. To go from gross to what lands in your account, use the Take-Home Pay Calculator. If you are salaried and want to know your notional hourly rate first, start with the Salary to Hourly Calculator, then decide whether overtime rules even apply to you (many salaried roles are exempt).
The thresholds and multipliers here are assumptions, not law. The US default is 1.5× past 40 hours per week. Other countries and contracts differ, and some define overtime daily rather than weekly. Enter the hours that already qualify under your own rules; the calculator does not decide which hours are overtime.
The formula and the intuition
Total gross pay for the period is the base rate multiplied by regular hours, plus the premium rates applied to the overtime buckets.
Here P is total pay, r is the base hourly rate, h_r is regular hours, h_{1.5} is hours paid at time-and-a-half, and h_2 is hours paid at double time. Every term is just a rate times a count of hours.
The blended rate is total pay divided by total hours worked.
The symbol \bar{r} reads "r-bar" and means the average rate. Notice that the denominator counts each hour once, no matter what it paid. That is why a few premium hours move the average only a little: they are averaged against every ordinary hour too.
You can also write the blended rate as the base plus a lift. Let H be total hours. Then \bar{r} = r + \frac{0.5\, r \cdot h_{1.5} + r \cdot h_2}{H}. The extra amount per hour is the total premium spread across all hours.
A worked example with the demo numbers
25 per hour, 160 regular, 10 at 1.5×, 0 at 2×
These are the tool's default values, so you can press the demo button and check each line.
- Regular pay:
25 × 160 = 4000. - Time-and-a-half pay: the per-hour rate is
25 × 1.5 = 37.5, so37.5 × 10 = 375. - Double-time pay:
25 × 2 × 0 = 0. - Total gross pay:
4000 + 375 + 0 = 4375. - Total hours:
160 + 10 + 0 = 170. - Blended rate:
4375 ÷ 170 = 25.7353, about25.74per hour.
The premium portion is 375 − (25 × 10) = 125. Of the 375 you earned in that overtime bucket, 250 would have been paid at the base rate anyway, and 125 is the true extra you gained from the 1.5× multiplier.
How the blended rate reacts to more overtime
The blended rate rises as overtime hours grow, but it approaches the premium rate slowly because the base hours keep pulling it down. Keep the base at 25 and 160 regular hours, add double-time hours, and watch the average climb toward but never reach 50.
Reading and interpreting your result
Three numbers matter: total pay, the blended rate, and the share of pay that is premium.
- Total gross pay
- The full amount before deductions. Compare it to your pay stub's gross line, not the net.
- Blended rate
- Your average earned rate. It is useful for comparing periods with different overtime. A period at
25.74paid better per hour than a period at25.00, but the higher period also cost you more hours of your life. - Premium share
- The premium dollars divided by total pay. In the demo,
125 ÷ 4375 ≈ 2.86%. If a large fraction of your income is premium, it is fragile: it vanishes the moment the overtime stops.
If overtime is regular, treat the base pay as your reliable income and the premium as a bonus you should not rely on. A raise on the base rate is worth more than the same dollars of overtime, because it lifts every hour, including future ones. See the Pay Raise Calculator to compare.
Common mistakes
The errors below change the answer by real money, so check for them before trusting a number.
- Double-counting hours. The overtime buckets are separate from regular hours, not on top of them. If you worked 170 hours total with 10 at 1.5×, enter 160 regular and 10 overtime, not 170 and 10.
- Multiplying the whole rate incorrectly. Time-and-a-half is
1.5 × 25 = 37.5per hour, not25 + 1.5. Double time is50, not27. - Applying weekly rules to a longer period. Overtime in the US is judged per week. If your pay period is two weeks, a 90-hour fortnight is not 50 overtime hours; it depends on how the hours fell in each week. Split the period into weeks first.
- Comparing gross overtime pay to net regular pay. Overtime is taxed the same as any wage, so compare like with like using the take-home tool.
Related tools
Once you know your gross and blended rate, several nearby calculators build on it. Use the Freelance Hourly Rate Calculator if you are pricing your own time instead of taking overtime. Check whether your pay has kept pace with prices using the Salary Inflation Check. If you want the big picture, the Lifetime Earnings Calculator projects a career of pay with raises. For the hidden costs that eat into overtime gains, the Commute Cost Calculator and the Meeting Cost Calculator put numbers on time you may not be counting.
Frequently asked questions
Is overtime taxed at a higher rate?
The overtime dollars are ordinary wages and taxed at your normal marginal rate. A single big overtime paycheck can trigger more withholding than usual, which looks like a higher tax, but it evens out when you file. The pay itself is not taxed under a special rule.
How do I handle a two-week pay period?
Split it into weeks and apply the overtime threshold to each week on its own, then add the results. Ten overtime hours in week one and none in week two is not the same as five and five for total pay, but for straight 1.5× on all overtime hours it works out the same total. It differs once daily rules or double time enter.
Why is my blended rate so much lower than 1.5×?
Because most of your hours are regular. In the demo, only 10 of 170 hours carry a premium, so the average sits near the base at 25.74, far below 37.50. The blended rate only nears the premium when premium hours dominate.
Does this handle daily overtime rules?
Indirectly. The calculator does not know your thresholds. You decide which hours are regular, which are 1.5×, and which are 2× under your local rules, then enter those counts. The math applies the multipliers you assigned.
Related tools
Income Tax Bracket Calculator
Federal income tax by bracket (US) or flat rate (HU).
Salary to Hourly Calculator
Convert pay between hourly, monthly and annual.
Take-Home Pay Calculator
Gross to net with configurable deductions.
Effective Marginal Rate & Benefit Cliffs
What you really keep from the next unit earned.
Freelance Hourly Rate Calculator
The rate that actually hits your income target.
Pay Raise Calculator
Raise in percent, amount, and after inflation.