Time Card Calculator
Add up weekly hours from start and end times and breaks, with optional pay and overtime.
Your week
Filled in with example values. Replace them with your own.
Leave both times empty for a day off. An end time before the start means the shift ends the next day.
Optional
Multiplies the hours by your hourly rate, before any tax or deductions.
Hours above a weekly limit are counted as overtime. The defaults match the US federal rule for many hourly workers (1.5× pay after 40 hours a week); your state, country or contract may differ.
Results update as you type.
Result
Total: 37.5 hours (37:30)
Total this week
37.5hours
- Monday
- 7:30 · 7.5 h
- Tuesday
- 7:30 · 7.5 h
- Wednesday
- 7:30 · 7.5 h
- Thursday
- 7:30 · 7.5 h
- Friday
- 7:30 · 7.5 h
How it’s calculated
Each day
End − start − unpaid break = minutes worked
Add up the week
7:30 + 7:30 + 7:30 + 7:30 + 7:30 = 37:30
In decimal hours
2,250 min ÷ 60 = 37.5 h
How the time card calculator works
For each day, the calculator subtracts the start time from the end time and then takes away any unpaid break. It adds the days together and shows the total both in hours and minutes (37:30) and in decimal hours (37.5), which is what most payroll systems use.
If you enter an hourly rate, it multiplies the hours by the rate to get gross pay, before tax and other deductions. With the overtime option on, hours above the weekly limit are paid at the higher rate.
The formula
Day = End − Start − Unpaid break
Decimal hours = Total minutes ÷ 60
Pay = Regular hours × Rate + Overtime hours × Rate × Multiplier
Worked examples
A standard week
Monday to Friday from 9:00 to 17:00 with a 30-minute unpaid lunch is 8 hours − 30 minutes = 7:30 a day. Five days make 37:30, or 37.5 hours. At 18.25 an hour, that is 37.5 × 18.25 = 684.38 (684.375 rounded to the cent).
A week with overtime
Monday to Friday from 8:00 to 17:30 with 30 minutes for lunch is 9 hours a day, 45 hours in total. With overtime after 40 hours at 1.5 times a rate of 20.00: 40 × 20.00 = 800.00 regular pay, plus 5 × 20.00 × 1.5 = 150.00 overtime, a total of 950.00.
Assumptions and limitations
- One shift per day. For split shifts, add the hours of each part yourself or use the break column for the gap.
- A shift can run past midnight but not longer than 24 hours.
- Pay is gross pay. Taxes, deductions, tips and shift premiums are not included.
- Overtime is counted per week only, using the limit and multiplier you set.
Frequently asked questions
Why is 7:30 not the same as 7.3 hours?
Hours and minutes count in sixties, not tens. 7 hours 30 minutes is 7.5 hours, because 30 minutes is half an hour. To convert, divide the minutes by 60: 7:45 is 7 + 45 ÷ 60 = 7.75 hours. Payroll usually uses decimal hours.
How do I enter a night shift?
Enter the start and end times as they are, for example 22:00 to 06:30. When the end time is earlier than the start time, the calculator assumes the shift ends the next day.
Are breaks paid or unpaid?
The break column is for unpaid breaks, which are subtracted from the shift. Leave it at 0 for paid breaks. Whether a break is paid depends on your employer and local law.
Does this follow overtime law where I live?
Only if you set it to. The overtime option counts hours above a weekly limit at a higher rate. Its defaults, 1.5 times pay after 40 hours a week, match the US federal rule for many hourly workers, but some states count overtime by the day, other countries have different rules, and many workers are exempt. Check the rules that apply to you.
My employer rounds clock-in times. Does the calculator?
No. It uses the exact times you enter. If your employer rounds to the nearest 5 or 15 minutes, enter the rounded times to match your payslip.