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Overtime Calculator

Enter this week's total hours. Hours over 40 pay at 1.5x, and expected gross shows up immediately.

Expected Gross Pay
$1,375.00
Regular:$1,000.00
Overtime:$375.00
Double time:$0.00
Already know regular / OT / DT hours?
How do you want to enter hours?

Enter this week's total hours. Hours over 40 become 1.5x OT under the federal weekly baseline.

Flat tax estimate

Optional flat percentage for a rough tax and net planning estimate.

Federal weekly baseline only
Hours above 40 show as 1.5x OT. Check the calculation details before you rely on this estimate.
View calculation details below

Choose the layout that matches your paystub, then enter its pre-tax earnings lines.

Where did this gross come from?

Hours over 40 in the workweek are paid at 1.5 times your confirmed regular rate. Regular pay plus that overtime line is the expected gross.

  • At $20 an hour, one overtime hour is $20 × 1.5 = $30.
  • A $20 rate and 45 total hours splits as 40 regular + 5 OT: $800 + $150 = $950 expected gross.

That is the federal weekly baseline only. It does not decide eligibility, California daily overtime, or a tax-return result.

If the 1.5x hours are already confirmed and you only need that rate, use the Time and a Half Calculator.

The math for the numbers you entered

Hours, rates, and formulas for the estimate above.

Which values and rates were used?

Regular rate $25.00; total hours 50; auto-split into 40 regular, 10 OT, and 0 DT.

OT rate $37.50 at 1.5x; DT rate $50.00 at 2x.

What about the tax estimate?

Estimated tax
$302.50
Estimated net
$1,072.50

One flat percentage on expected gross—not withholding, take-home, deductions, filing status, or a tax-return result.

What math produced this gross?

Total hours were split at the federal 40-hour workweek baseline, then these formulas ran.

Regular: $25.00 × 40 hours × 1 = $1,000.00

Overtime: $25.00 × 10 hours × 1.5 = $375.00

Double time: $25.00 × 0 hours × 2 = $0.00

What does this estimate assume?
Total hours auto-split at the federal 40-hour workweek baseline. Not an eligibility, state daily, salary, or employer-policy decision. Switch to confirmed hour buckets if you already know regular / OT / DT.

Which example matches what you're checking?

Load one into the calculator, then edit every value to match your facts.

Illustrative only—not real cases, and not conclusions about anyone's pay.

Just a normal OT week?

One ordinary OT week on the federal 40-hour baseline.

What goes in?
$20 confirmed regular rate; 45 total workweek hours.
Why that gross?
40 regular + 5 at 1.5× → $800 + $150 = $950 expected gross.
When does this help?
See how total hours become earnings lines.
Pattern and limits
  • What transfers? Hours over 40 create a 1.5× OT line on this federal path.
  • What stays out of scope? Does not decide eligibility, state daily rules, or employer policy.

Longer week—and a rough tax take?

A 50-hour federal week plus an optional flat tax planning rate.

What goes in?
$25 confirmed regular rate; 50 total hours; 22% flat tax estimate.
Why that gross?
40 regular + 10 at 1.5× → $1,000 + $375 = $1,375 gross; ~$302.50 tax estimate.
When does this help?
Compare gross OT earnings with a rough flat-rate tax figure.
Pattern and limits
  • What transfers? Past 40 hours, straight-time and 1.5× OT split on separate lines.
  • What stays out of scope? Flat % is not exact withholding; the weekly split is not an eligibility decision.

Stub shows straight time + premium?

Same $25 / 50-hour week, shown the way some paystubs split lines.

What goes in?
$25 rate; 50 total hours; $1,250 straight time paid; $125 0.5× OT premium paid.
Why that gross?
Straight time for all 50 hours + OT premium = $1,375—comparison matches.
When does this help?
When the stub lists all hours at straight time and the extra premium alone.
Pattern and limits
  • What transfers? Full-rate OT and straight time + premium can equal the same gross.
  • What stays out of scope? Arithmetic only—does not validate payroll layout, classification, taxes, or compliance.

Is this the right calculator for your case?

Federal weekly estimate from total hours, or from hour buckets you already confirmed. It does not decide coverage, exemption, salary treatment, or state-law eligibility—use a specialist path below when your case is different.

Only need a 1.5x rate and a simple weekly total? Use the Time and a Half Calculator.

What can throw this estimate off?

Usually the week or the rate. Total Hours auto-splits at the federal 40-hour workweek baseline; confirmed hour buckets use the regular / OT / DT you already know. Neither path rebuilds a timecard, decides overtime eligibility, or covers salary, California daily rules, or OBBBA tax treatment.

Why can't I just add up the pay period?

Federal overtime runs on a fixed 168-hour workweek. A biweekly stub usually covers two weeks—so pay-period totals alone do not show which hours were OT.

Read the FLSA overtime guide

Is my base hourly rate enough?

Nondiscretionary bonuses, commissions, shift differentials, and multiple rates can raise the regular rate. Enter a rate you have already confirmed for the period you are checking.

Check DOL Fact Sheet #56A

After the first number?

  1. 1

    Does the split look right?

    Total Hours uses the federal 40-hour workweek. Confirmed buckets keep the regular / OT / DT hours you already classified. Fix those before you treat the gross as your week.

  2. 2

    Want to match a paystub?

    From either input path, choose full-rate lines or straight time plus premiums. Enter every non-zero pre-tax line before you treat the total as complete.

  3. 3

    Need a record for payroll?

    Copy the summary: inputs, formulas, expected vs entered amounts, and facts still to confirm.

Want the longer formula walkthrough and worked examples? Browse the overtime guides.

Where do these rules come from?

Rules last checked:

Each card links one federal boundary to the DOL source checked on that date. California daily overtime has its own official page and calculator.

Who maintains these boundaries?

This site—Overtime Calculator—maintains the page. Rule boundaries change only after a check against the sources below, using the federal weekly 40-hour baseline or the hour buckets you confirm.

Read our methodology for scope, source process, and other rule sets.

This is an arithmetic estimate from the facts you enter. It does not determine FLSA coverage, exemption status, state-law eligibility, contract rights, or whether a payroll practice is lawful. Confirm unresolved facts with payroll, HR, the relevant labor agency, or a qualified adviser.

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Still stuck on a detail?

Enter the regular rate you have confirmed for the workweek. Bonuses, commissions, shift differentials, or multiple rates can push it above a base hourly wage. See DOL Fact Sheet #56A.