Hours calculator.
Calculate exact hours and minutes between two times. Includes decimal hours for timesheets, billing, and payroll.
Calculate hours worked.
Enter start time, end time, and optional break duration.
Time details
About the hours calculator
This calculator is designed for anyone who needs to track work hours — from freelancers calculating billable time to employees verifying payroll, students timing study sessions, or shift workers tracking their schedule.
The key feature is decimal hours: rather than showing "1h 45m", the calculator also shows 1.75 hours, which is what most payroll systems and invoicing tools expect.
Quick decimal conversion reference
| Minutes | Decimal hours |
|---|---|
| 15 min | 0.25 hrs |
| 30 min | 0.50 hrs |
| 45 min | 0.75 hrs |
| 1 hr 15 min | 1.25 hrs |
| 1 hr 30 min | 1.50 hrs |
| 7 hr 30 min | 7.50 hrs |
FAQ
How do I calculate hours between two times?
Enter a start time and an end time. PRECISR subtracts the start from the end and returns the duration in hours and minutes, decimal hours, and total minutes.
What is a decimal hour?
A decimal hour expresses time as a fraction of an hour. For example, 1 hour 30 minutes equals 1.5 decimal hours. This format is used in most payroll, billing, and timesheet systems.
Does this calculator handle overnight shifts?
Yes — if your end time is earlier than your start time (e.g. 11:00 PM to 7:00 AM), the calculator treats it as crossing midnight and adds 24 hours automatically.
Can I calculate pay with this?
Yes — enter your hourly rate and the calculator multiplies it by total hours worked to give your estimated gross pay for that shift.