Overtime Calculator
Enter your clock in/out times and hourly rate — overtime is calculated automatically once you pass your weekly threshold.
How this overtime calculator works
Turn on the Overtime toggle above the calculator, set the weekly hour threshold your overtime kicks in after (40 hours is standard in the US), and enter your regular and overtime hourly rates. As you fill in each shift's clock-in and clock-out times, the calculator splits your total hours into Regular and Overtime automatically — per week, not just per day — and shows what each portion is worth.
Most overtime pay is calculated at 1.5× your regular rate ("time and a half") once you pass the weekly threshold; some states and union contracts also apply double time beyond a second threshold or on specific days. Enter whatever your overtime rate actually is in the OT Rate field — the calculator does the multiplication for you.
Who needs an overtime calculator?
Hourly and shift employees — check that a paycheck matches the hours actually worked. Small business owners and managers — estimate payroll costs before a busy week. Retail, healthcare, and warehouse workers — track irregular or rotating shifts where overtime is common. This tool estimates pay based on the numbers you enter; it isn't a substitute for your employer's payroll system or a legal reference for overtime law in your state.
Frequently asked questions
How do I calculate overtime pay? Turn on the Overtime toggle, set your weekly hours threshold (commonly 40), and enter your regular and overtime hourly rates. Fill in your shifts as usual — the calculator automatically splits your weekly total into regular and overtime hours and calculates each at its own rate.
What is time and a half? Time and a half means overtime hours are paid at 1.5 times your regular hourly rate. If your regular rate is $20/hr, time and a half is $30/hr. Enter $30 in the OT Rate field to see this reflected in your total.
How is overtime calculated when I work multiple weeks? The calculator applies your overtime threshold separately to each week of entries, then adds the regular and overtime totals together — so a two-week timesheet won't incorrectly treat 80 hours as one long week.
Does this calculator know my state's overtime laws? No — overtime rules vary by state, industry, and sometimes by union contract. This tool simply applies the threshold and rate you enter. Check your local labor law or your employer's policy for the rules that apply to you.
Can I calculate double time as well? Yes, indirectly — run your double-time hours as a separate entry using the OT Rate field set to your double-time rate, or calculate that portion separately using the same total-hours breakdown.