Overtime Calculator

Overtime Calculator Guide

Overtime Calculator helps you estimate extra pay when work hours go beyond a normal threshold. You can use it to check regular pay, overtime pay, double-time pay, and total gross pay before payroll closes or before accepting extra shifts.

An overtime calculator is most useful when you know three things: your regular hourly rate, the number of regular hours, and the number of overtime hours. Some workplaces use a weekly threshold, while others may also have daily overtime, holiday premiums, shift premiums, or contract-specific rules. This calculator gives a practical estimate based on the values you enter.

How to use the Overtime Calculator

Use the overtime calculator after you have already reviewed your hours. If you are still adding shifts and breaks, start with the Work Hours Calculator or Timesheet Calculator first. Once your hours are clear, use this page to estimate the extra-pay portion.

1. Enter your regular hourly rate.
2. Enter regular hours and overtime hours, or enter total hours and choose an overtime threshold if the tool supports it.
3. Choose the overtime multiplier, such as 1.5x for time and a half or 2x for double time.
4. Add any extra overtime settings the tool provides, such as double-time hours or a separate premium rate.
5. Calculate and review regular pay, overtime pay, and total gross pay.
6. Compare the estimate with your employer policy, contract, or official labor rules before treating it as final payroll.

For a clean result, keep regular hours and overtime hours separate. If your total week is 46 hours and overtime starts after 40 hours, then regular hours are 40 and overtime hours are 6. The overtime calculator can then apply the correct multiplier to those 6 extra hours.

Formula and assumptions

The basic overtime formula is simple, but the result depends on the rule you select. Most users are trying to estimate time and a half, where overtime is paid at 1.5 times the regular hourly rate.

Regular pay = regular hours x hourly rate

Overtime rate = hourly rate x overtime multiplier

Overtime pay = overtime hours x overtime rate

Total gross pay = regular pay + overtime pay + double-time pay

If your hourly rate is 20 and your overtime multiplier is 1.5, the overtime rate is 30 per hour. If you worked 5 overtime hours, overtime pay is 5 x 30 = 150. The overtime calculator keeps these pieces visible so you can see where the total comes from.

The calculator assumes the hourly rate, hours, and multiplier you enter are correct for your situation. It does not decide whether you are eligible for overtime, whether a specific hour must be paid as overtime, or whether another law or agreement changes the rate.

Example overtime calculation

Suppose you earn 25 per hour and worked 45 hours in a week. If overtime starts after 40 hours and overtime is paid at 1.5x, then 40 hours are regular and 5 hours are overtime.

If the same 5 extra hours were paid as double time, the overtime rate would be 50 per hour and the extra pay would be 250. That is why the multiplier matters as much as the number of overtime hours.

How to read the result

The overtime calculator result should separate regular pay from overtime pay. Regular pay tells you what you earned before the overtime rule applies. Overtime pay tells you the premium amount for extra hours. Total gross pay combines them before tax, deductions, or benefits.

If the result looks too high or too low, check the overtime hours first. A common mistake is entering total weekly hours as overtime hours. For example, if you worked 45 hours and overtime starts after 40, the overtime hours are 5, not 45.

Overtime rules and payroll checks

The overtime calculator provides an estimate. Official payroll can depend on law, location, job classification, employer policy, and contract terms. In the United States, the Department of Labor explains that covered nonexempt workers generally receive overtime pay after 40 hours in a workweek at not less than one and one-half times the regular rate. You can review the official Fair Labor Standards Act overview and DOL overtime fact sheet for context.

Some workplaces have daily overtime, double time, holiday premiums, night-shift premiums, or special contract rules. If those rules apply to you, use the calculator as a planning estimate and verify the final number with the official policy or payroll team.

Common mistakes to avoid

• Do not enter total weekly hours as overtime hours.
• Do not assume every extra hour is paid at the same multiplier.
• Do not forget unpaid breaks when calculating total hours.
• Do not treat gross pay as take-home pay after tax and deductions.
• Do not assume overtime always starts after the same threshold in every location or contract.
• Do not use the estimate as legal or payroll advice.

Related calculators

Use the Work Hours Calculator to total weekly shifts before estimating overtime. Use the Timesheet Calculator when you want a weekly payroll summary. Use the Time Card Calculator for detailed clock-in and clock-out rows.

If your hours are written as hours and minutes, use the Hours to Decimal Calculator before entering payroll values. For comparing two time values without payroll rules, use the Time Difference Calculator.

Overtime Calculator FAQs