Hours Calculator
Calculate hours and minutes between times, including optional breaks and decimal-hour output. An hours calculator computes the duration between two times and can output both hh:mm and decimal hours. It’s useful for timesheets, billing, and quick time math.
Inputs
Crosses midnight
Enable for overnight shifts (e.g. 22:00 → 06:00).
Rounding
Useful for timesheets that round to 5/6/10/12/15-minute increments.
Rounding applies to start and end times before calculating duration.
Duration
8:00
Decimal hours: 8
Total minutes: 480
Decimal hours are useful for timesheets and billing.
How to use it
- Enter a start time and end time.
- Toggle “crosses midnight” if the shift goes past midnight.
- Optionally enter a break duration.
- Review total time and decimal hours.
FAQ
Enter a start time and end time and subtract breaks if needed. The calculator outputs both hh:mm and decimal hours.
Enable “crosses midnight” so the end time is treated as the next day (for example, 22:00 → 06:00).
Decimal hours represent time as a single number (e.g. 1:30 = 1.5 hours). Many payroll systems use this format.
If you enable rounding, start and end times are rounded to your chosen increment before calculating the duration. Match the settings to your workplace policy.
The time card calculator is better for weekly totals. This tool focuses on a single interval.
Related calculators
Mortgage Calculator
Estimate your monthly mortgage payment with a detailed cost breakdown and amortization schedule.
BAC (Blood Alcohol Content) Calculator
Estimate blood alcohol content (BAC) based on drinks, weight, and time. For informational purposes only.
Calorie Calculator (TDEE)
Estimate daily calorie needs (maintenance, cut, or bulk) using a standard BMR + activity model.
CPM Calculator
Calculate CPM, impressions, or total cost by filling in any two fields.
CD (Certificate of Deposit) Calculator
Estimate CD interest earned and ending balance at maturity with common compounding options.
Loan Calculator (Amortization)
Calculate monthly loan payments and view a full amortization schedule.
Disclaimer
Estimates only. Timesheet rounding and overtime rules vary by employer and jurisdiction. Match your workplace policy for official totals.