Hours Calculator
Use the hours calculator to find how many hours are between a start time and an end time. Add break minutes to get a cleaner work-hours total for time sheets, invoices, and schedule checks.
Calculate Work Hours
Enter a start time, end time, and optional break length.
Result
8 hours
8.00 decimal hours
Common Work Hour Examples
- 9:00 AM to 5:00 PM with no break is 8.00 decimal hours.
- 8:30 AM to 4:45 PM with a 30 minute break is 7.75 decimal hours.
- 11:00 PM to 7:00 AM is an overnight shift and should be calculated with date-aware time tools.
Hours Calculator FAQ
How do I subtract lunch from work hours?
Enter the start and end times, then enter lunch or break time in minutes. The calculator subtracts that break from the total.
What are decimal hours?
Decimal hours express minutes as part of an hour. For example, 8 hours and 30 minutes is 8.50 hours.