Work Hours Calculator
Fill in your start and end times for the week. The time card adds up your hours, subtracts unpaid breaks and works out overtime and pay.
How to calculate hours worked
For each day, subtract the start time from the end time and then subtract any unpaid break. A shift from 9:00 AM to 5:30 PM is 8.5 hours; with a 30-minute unpaid lunch it is 8 hours. Shifts that pass midnight are handled automatically — a shift from 10:00 PM to 6:00 AM counts as 8 hours.
Payroll often uses decimal hours. To convert minutes to a decimal, divide by 60: 15 minutes is 0.25 hours, 30 minutes is 0.5 and 45 minutes is 0.75.
How overtime works in the U.S.
Under the federal Fair Labor Standards Act (FLSA), most hourly ("non-exempt") employees must be paid at least 1.5 times their regular rate for hours over 40 in a workweek. Some states have stricter rules — California, for example, also requires daily overtime after 8 hours in a day. This calculator uses the weekly rule; check your state's labor department if daily overtime applies to you.
Gross pay = Regular hours × rate + Overtime hours × rate × 1.5
Frequently asked questions
Are breaks paid?
Under federal rules, short breaks of 5 to 20 minutes are generally paid, while meal breaks of 30 minutes or more when you are fully relieved of duty are usually unpaid. Enter only unpaid break time.
Is the gross pay what I take home?
No. Gross pay is before taxes and deductions such as Social Security, Medicare, income tax, health insurance and retirement contributions.
Last reviewed November 15, 2026.
