Hours Calculator and Work Hours Timesheet
Add up durations or enter your start time, end time and break for each day: the total appears in hours:minutes and in decimal hours, with any overtime for the week.
- Add up times
- Hours worked
- Decimal hours
- Free
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How to calculate hours?
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Pick a mode
Add or subtract durations, or calculate your hours worked over the week.
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Enter your times
Type durations as h:mm, or enter each day's start time, end time and break length.
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Read the total
The total appears in hours and minutes and in decimal hours, with each day's hours and any time beyond your weekly threshold.
Your hours added up without mistakes
Add and subtract
Add or remove as many durations as you need: minutes past 60 carry over into hours automatically.
Weekly timesheet
Start, end and break for each day: your daily hours and the weekly total are calculated for you.
Overtime
Hours beyond a weekly threshold you set, such as the 40 hours of a full-time week, are shown as overtime for guidance.
Minutes and decimal hours
Convert minutes to decimal hours and back: 7:30 becomes 7.5 hours, and 0.75 hours is 45 minutes.
Add hours and minutes without mistakes
Hours don't add up like decimal numbers, because an hour has 60 minutes, not 100. To add 1:45, 2:30 and 0:50, start with the minutes: 45 + 30 + 50 = 125 minutes, which is 2 hours and 5 minutes. Then add the hours: 1 + 2 + 0 + 2 = 5, for a total of 5:05. Typing those values into a regular calculator, 1.45 + 2.30 + 0.50, would give 4.25, which is wrong. The tool carries the minutes over automatically, handles subtraction, and also shows the total in decimal hours, here about 5.08 hours, handy for an invoice or a spreadsheet.
Convert minutes to decimal hours
Payroll software, time-tracking apps and many spreadsheets count time in decimal hours. To convert minutes to decimal hours, divide by 60: 30 minutes is 0.5 hours, 15 minutes 0.25 hours, 45 minutes 0.75 hours and 20 minutes about 0.33 hours. A 7-hour-30-minute day is therefore written 7.5 hours, not 7.30. The other way, multiply the decimal part by 60: 8.2 hours is 8 hours and 0.2 × 60 = 12 minutes, or 8:12. Mixing up 7.30 and 7:30 is the most common timesheet mistake, and it's a 12-minute gap every day.
Calculate hours worked and overtime
For one day, take the time between your start and end times, then subtract your break. Starting at 8:00 a.m., leaving at 5:30 p.m. with a 30-minute lunch break gives 9:30 − 0:30 = 9 hours of work. Five days like that add up to 45 hours, or 5 hours beyond a 40-hour week. Set the threshold to the weekly hours in your contract: the tool starts at 35, and you can change it to 40 or any other value. In the US, non-exempt employees are generally paid time and a half for hours over 40 in a workweek, and some states have their own rules. The result is for guidance only: your contract or employer may apply different rules.
Frequently Asked Questions
How do I add hours and minutes?
Add the minutes, turn every 60 minutes into one hour, then add the hours. 1:45 + 2:30 = 3 hours 75 minutes = 4:15. The tool does the carrying for you.
How do I convert 7 hours 30 minutes to decimal hours?
Divide the minutes by 60: 30 / 60 = 0.5, so 7:30 is 7.5 hours. In the same way, 7:45 is 7.75 hours and 7:15 is 7.25 hours.
How do I calculate my work hours with a lunch break?
Subtract your start time from your end time, then subtract the length of your break. From 9:00 a.m. to 5:30 p.m. with a 1-hour break, you worked 7 hours 30 minutes, or 7.5 hours.
When do hours count as overtime?
It depends on your contract and where you work. In the US, overtime generally starts after 40 hours in a workweek for non-exempt employees. The tool's threshold starts at 35 hours: change it to your contract's weekly hours, for example 40.
How many minutes is 0.75 hours?
Multiply by 60: 0.75 × 60 = 45 minutes. Likewise, 0.5 hours = 30 minutes and 0.25 hours = 15 minutes.