This hours calculator works like a time card. For each day, enter when you started, when you finished and how long your unpaid break was, and it shows the hours worked that day and the total for the week, both in hours and minutes (7h 45m) and in decimal hours (7.75), the format most payroll systems use.
Add an hourly rate to see your gross pay, with optional overtime after a set number of hours per week at time-and-a-half or any multiplier you choose. Night shifts that run past midnight are handled automatically.
How to use the Hours Calculator tool
- Enter the start and end time for each day you worked.
- Enter the break length in minutes (unpaid breaks only).
- Use + Add row for more days or ✕ to remove a day.
- Read the hours per day and the weekly total in hours:minutes and decimal.
- Optionally enter an hourly rate and overtime rules to see your pay.
Why use ToolOrca Hours Calculator
- Unlimited rows for days or shifts
- Overnight shifts past midnight
- Totals in h:mm and decimal hours
- Unpaid break deduction
- Pay with weekly overtime and multiplier
- Works on phones for quick timesheets
How hours worked are calculated
Hours worked = end time − start time − break. If the end time is earlier than the start time, the shift is assumed to cross midnight and 24 hours are added. To convert minutes to decimal hours, divide by 60: 45 minutes = 0.75 hours, 20 minutes = 0.33 hours.
Worked example: 9:00 to 17:30 with a 30-minute break is 8 h 30 min − 30 min = 8 hours. Five such days make 40 hours. At $20 an hour that is $800; with 2 extra hours of overtime at 1.5×, pay is 40 × $20 + 2 × $30 = $860. A night shift from 22:00 to 06:00 with no break is 8 hours.
Frequently asked questions
How do I convert hours and minutes to decimal?
Divide the minutes by 60 and add them to the hours. 7 hours 45 minutes = 7 + 45 ÷ 60 = 7.75 hours; 8 hours 10 minutes = 8.17 hours.
How many hours is 9 to 5?
9:00 am to 5:00 pm is 8 hours. With a 30-minute unpaid lunch it is 7.5 hours, or 37.5 hours over a 5-day week.
How do I calculate a shift that goes past midnight?
Just enter the times as they are, for example 22:00 to 06:00. The calculator sees that the end is earlier than the start and counts it as 8 hours.
How is overtime calculated?
Hours above the weekly limit (40 by default, common in the US) are paid at the multiplier, usually 1.5×. Rules differ by country and contract, so set the limit and multiplier to match yours.