Overtime Calculator – Free OT Pay Calculator Online
Calculate your overtime pay instantly. Enter your hourly rate, hours worked, and tax rate to see gross and net amounts in real-time.
What Is Overtime Pay?
Overtime pay is additional compensation for hours worked beyond the standard 40-hour workweek. Under the Fair Labor Standards Act (FLSA), non-exempt employees must receive at least 1.5 times their regular hourly rate for overtime hours. Some states like California require daily overtime (over 8 hours per day) and double time (over 12 hours per day or 7th consecutive workday). This calculator helps you estimate both gross overtime earnings and take-home pay after federal and state tax withholdings.
Working in California?
California has unique daily overtime rules — after 8 hours/day you earn 1.5x, and after 12 hours you earn 2x. Use our specialized calculator.
Overtime Pay Formula
Regular Pay = Hourly Rate × Regular Hours (max 40)
Overtime Pay = Hourly Rate × 1.5 × OT Hours
Double Time Pay = Hourly Rate × 2 × DT Hours
Gross Pay = Regular + Overtime + Double Time
Net Pay = Gross Pay × (1 - Tax Rate)
The 1.5x multiplier is the federal minimum under FLSA. Some employers offer higher rates. Double time (2x) is not required by federal law but is mandatory in California for hours over 12 per day.
Calculation Examples
Real scenarios showing how overtime pay adds up. All examples assume a 22% combined tax rate.
| Scenario | Regular | Overtime | Gross | Net |
|---|---|---|---|---|
| $20/hr, 10 OT hours | $800 | $300 | $1,100 | $858 (22% tax) |
| $30/hr, 5 OT + 3 DT hours | $1,200 | $225 | $1,605 | $1,252 (22% tax) |
| $15/hr, 20 OT hours | $600 | $450 | $1,050 | $819 (22% tax) |
What This Overtime Pay Calculator Covers
This page now targets more than the head term. It also helps people looking for a time and a half calculator, overtime hours calculator, and overtime hours breakdown.
Time and a half calculations
Use the 1.5x overtime field to calculate standard federal overtime pay for hours over 40 in a workweek.
Overtime hours calculator
Separate regular hours from overtime hours so you can see exactly how extra hours change total pay.
Double time scenarios
Add 2x hours for employer policies, union contracts, or state-law situations where double time applies.
Gross and take-home pay
Estimate both gross overtime earnings and post-tax pay in one place instead of calculating them separately.
How to Separate Regular, Overtime, and Double-Time Hours
The most useful overtime hours calculator is the one that helps you place each hour in the right bucket before you calculate pay.
Regular hours
These are the first 40 hours in a standard federal workweek. The calculator uses them to build your base pay.
Overtime hours at 1.5x
These are the hours over 40 that qualify for time and a half under FLSA. Enter them in the OT field.
Double-time hours at 2x
Use the DT field only when your state law, union contract, or employer policy pays 2x. Federal law alone does not require double time.
Need the full formula and worked examples?
Read the step-by-step guide for overtime formulas, regular rate rules, and hour-counting examples.
Common Overtime Calculation Mistakes
Forgetting to include all hours over 40
Some workers only count hours beyond their scheduled shift, missing overtime from extra days worked. Under FLSA, all hours over 40 in a workweek qualify for overtime, regardless of your normal schedule.
Using the wrong base rate
Overtime must be calculated on your regular rate of pay, which includes shift differentials, non-discretionary bonuses, and commissions. Using only your base hourly rate may underestimate your overtime pay.
Confusing gross and net pay
Overtime is taxed as regular income, not at a higher rate. However, a large overtime check may be withheld at a higher rate because payroll systems assume you earn that amount every pay period. The difference is refunded when you file taxes.
Ignoring state-specific rules
California, Alaska, Nevada, and Colorado have daily overtime rules that federal law does not require. If you work in these states, you may be entitled to overtime for hours over 8 in a single day, even if your weekly total is under 40.
Rules and references
Use these primary sources when you need the current federal rule, exemption threshold background, or California-specific overtime law.
How to Use
Enter your hourly rate
Input your base hourly wage. If you are salaried, divide your weekly salary by 40 to get the hourly equivalent. Include shift differentials if applicable.
Enter your hours
Input regular hours (up to 40), overtime hours at 1.5x rate, and double time hours at 2x rate if applicable. The calculator caps regular hours at 40 automatically.
Set your tax rate
Enter your estimated combined federal and state tax rate. The default 22% covers the federal bracket for most overtime earners. Adjust based on your actual withholding.
Review your results
See your gross pay (before taxes) and net pay (after taxes) instantly. The breakdown shows regular pay, overtime pay, and tax deductions separately.
Frequently Asked Questions
Under the Fair Labor Standards Act, overtime is paid at 1.5 times your regular hourly rate for all hours worked over 40 in a workweek. The workweek is a fixed 168-hour period (7 consecutive days) defined by your employer. Hours cannot be averaged across multiple weeks unless you work under a specific exemption like the 8/80 rule for healthcare workers.
No. Overtime is taxed as regular income at the same federal and state rates as your base wages. The confusion arises because payroll systems often withhold taxes at a higher rate on large paychecks, assuming you earn that amount every pay period. Any over-withholding is refunded when you file your annual tax return.
Non-exempt employees under FLSA are entitled to overtime. This includes most hourly workers and some salaried employees who do not meet both the salary-basis and duties tests. As of 2026, the federal salary level for most white-collar exemptions remains $684 per week because the 2024 DOL rule raising the threshold was vacated in federal court.
Double time (2x your regular rate) is not required by federal law but is mandatory in California for hours worked over 12 in a single day, or for all hours worked on the 7th consecutive day in a workweek. Some union contracts and employer policies also provide double time for holidays or specific shifts.
This calculator handles federal FLSA rules and basic double time. For full California compliance—including daily overtime (over 8 hours), double time thresholds (over 12 hours), and 7th consecutive day rules—use our dedicated California Overtime Calculator which automatically applies California Labor Code Section 510.