Hours Calculator (Time Card)
Add up a week of work hours. Enter each day’s start and end time and unpaid break, and the calculator totals the hours in both hours-and-minutes and decimal format for payroll.
How to use the Hours Calculator (Time Card)
- Enter the start and end time for each day you worked (leave days off empty).
- Enter unpaid break minutes for each day.
- Optionally add your hourly rate to see total pay.
How it works
Each day’s hours are end time − start time − break. If a shift ends earlier on the clock than it started (for example 10:00 PM to 6:00 AM), the calculator adds 24 hours so overnight shifts are counted correctly.
Payroll usually needs decimal hours: divide the minutes by 60 and add them to the hours. 7 hours 45 minutes = 7 + 45/60 = 7.75 hours. Under the US Fair Labor Standards Act, hours over 40 in a workweek are generally paid at 1.5× for non-exempt employees.
Minutes to decimal hours
| Minutes | Decimal | Minutes | Decimal |
|---|---|---|---|
| 5 | 0.08 | 35 | 0.58 |
| 10 | 0.17 | 40 | 0.67 |
| 15 | 0.25 | 45 | 0.75 |
| 20 | 0.33 | 50 | 0.83 |
| 25 | 0.42 | 55 | 0.92 |
| 30 | 0.5 | 60 | 1 |
Frequently asked questions
How do I calculate hours worked?
Subtract the start time from the end time, then subtract unpaid breaks. 8:30 AM to 5:00 PM with a 30-minute lunch is 8 hours.
How do I convert minutes to decimal hours?
Divide the minutes by 60. 15 minutes = 0.25 hours, 30 minutes = 0.5, 45 minutes = 0.75.
Does the calculator handle overnight shifts?
Yes — if the end time is earlier than the start time, the shift is assumed to end the next day.
What is overtime?
For most hourly US workers, hours beyond 40 in a week are overtime and paid at one and a half times the regular rate. Some states also have daily overtime rules.