Overtime Pay Calculator (FLSA 40-Hour Rule)
Calculate weekly gross pay under the FLSA 40-hour overtime rule: regular rate for first 40 hours, 1.5x for hours beyond 40.
How to use this tool
- Enter regular hourly rate and total hours worked this week in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your total gross pay and the full breakdown beneath it.
This is an estimate, not legal advice. Laws vary by jurisdiction and individual circumstances. Consult a qualified attorney before making any legal decisions.
Under the US Fair Labor Standards Act (FLSA), non-exempt employees must receive 1.5× their regular rate for hours worked beyond 40 in a workweek. Some states (e.g. California) have additional daily overtime rules — this calculator covers the federal 40-hour workweek rule only.
Formula
Regular pay = min(hours, 40) × hourly rate
Overtime hours = max(0, total hours − 40)
Overtime pay = overtime hours × hourly rate × 1.5
Total gross pay = regular pay + overtime pay
How it works
This calculator applies the U.S. Fair Labor Standards Act (FLSA) 40-hour weekly overtime rule: hours worked up to 40 are paid at the regular hourly rate, and every hour beyond 40 in the same workweek is paid at one-and-a-half times that rate. The result is an estimate of pre-tax gross pay only; it does not account for double-time provisions, state-law variations, exempt employee classifications, or payroll deductions.
Worked example
Worked example
- Regular hours = min(45, 40) = 40 hours
- Regular pay = 40 h × $20/hr = $800
- Overtime hours = 45 − 40 = 5 hours
- Overtime pay = 5 h × $20/hr × 1.5 = $150
- Total gross pay = $800 + $150 = $950
Regular pay $800 + Overtime pay $150 = Total gross pay $950 for 45 hours worked at $20/hr.
Key terms
- FLSA
- Fair Labor Standards Act — U.S. federal law that sets minimum wage, overtime pay eligibility, and recordkeeping standards for most private and public employers.
- Regular rate
- The employee's base hourly wage used to calculate both straight-time and overtime compensation.
- Overtime premium
- The extra 0.5× the regular rate paid for each hour beyond 40 in a workweek, bringing the total overtime rate to 1.5×.
- Workweek
- A fixed, regularly recurring period of 168 hours (seven consecutive 24-hour periods) used as the unit for overtime calculation under the FLSA.
- Exempt employee
- A worker not entitled to FLSA overtime pay, typically because they meet salary-level and job-duty tests for executive, administrative, or professional exemptions.
Frequently asked questions
- Who is covered by FLSA overtime?
- Most hourly (non-exempt) employees in the US. Salaried employees earning above the current FLSA salary threshold, and certain professionals, executives, and administrators, may be exempt. Consult an employment attorney if you are unsure of your classification.
- Do some states have stricter overtime rules?
- Yes. California, for example, requires daily overtime (1.5× after 8 hours in a day) and double time (after 12 hours in a day). This calculator uses only the federal 40-hour weekly rule.
- How is the regular rate defined?
- The FLSA 'regular rate' includes most forms of compensation: wages, non-discretionary bonuses, and shift differentials. It excludes gifts, vacation pay, and overtime premiums already paid.