How to use the Hours Calculator tool
3 simple steps · under a minute
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Enter your shifts
Type the start and end time for each day you worked.
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Add breaks
Enter unpaid break minutes for each day.
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Read your totals
See total hours, overtime and gross pay for the week.
About Hours calculator
This hours calculator works as a simple weekly time card. Enter the start and end time of each shift and your unpaid break, and it adds up the hours worked for each day and the whole week — in hours and minutes and in decimal hours for payroll.
Add your hourly rate to see your gross pay, including overtime. Under the US Fair Labor Standards Act, most hourly employees earn time and a half for hours over 40 in a workweek; you can change the threshold and rate if your job is different.
Weekly time card
Seven days at a glance, Monday to Sunday.
Overtime built in
Hours over 40 a week at time and a half, double time or your own threshold.
Night shifts
Shifts that end after midnight are counted correctly.
Frequently asked questions
How do I calculate hours worked?
Subtract the start time from the end time, then subtract unpaid breaks. 9:00 to 17:30 with a 30-minute break is 8 hours.
How do I convert minutes to decimal hours?
Divide the minutes by 60. 7 hours 45 minutes is 7.75 hours.
When does overtime start?
For most US hourly workers, after 40 hours in a workweek, paid at 1.5 times the regular rate. Some states also have daily overtime rules.
Can it handle overnight shifts?
Yes. If the end time is earlier than the start time, the shift is counted as ending the next day.
Is this a payroll document?
No. It is a calculation aid; your employer’s records are official.