About the time clock calculator
Enter your clock-in and clock-out time for each day, subtract unpaid breaks, and the calculator totals your hours in both hours-and-minutes and decimal format, the one payroll systems use. Add an hourly rate to estimate gross pay with overtime.
Formula
Hours worked = clock out − clock in − break. Decimal hours = minutes ÷ 60. Overtime pay = overtime hours × rate × multiplier.
Frequently asked questions
How do I convert minutes to decimal hours?
Divide the minutes by 60. 30 minutes is 0.5 hours and 45 minutes is 0.75 hours.
How is overtime calculated?
In the U.S., federal law generally requires 1.5× pay for hours over 40 in a workweek for eligible employees. Some states also count daily overtime.