Work Hours Calculator
Calculate total working hours from start time, end time and break duration. Useful for office shifts, attendance logs, freelancing and timesheets.
Track your daily work time
Enter shift timings and break minutes to get total worked hours in both hours-minutes and decimal format.
Timesheet Hours Calculator
Enter start time, end time and unpaid break duration.
What is the Work Hours Calculator?
A work hours calculator finds total working time from start time, end time and break duration. It is useful for daily shifts, weekly timesheets, monthly attendance records, freelance billing and payroll estimates.
The calculator first finds the gross time between start and end. Then it subtracts unpaid break minutes to show net working time. Showing both hours-minutes and decimal hours helps with timesheets and billing systems.
For weekly or monthly sheets, calculate each day separately and add the decimal hours. This avoids confusion when shifts have different breaks or when some days include overtime.
How we calculate the result
Formula: Work Hours = End Time - Start Time - Break Time
Start and end times are converted into minutes after midnight. Gross duration is end minutes minus start minutes. If the end time is earlier than the start time, the calculator treats it as an overnight shift and adds 24 hours.
Break minutes are subtracted from gross duration to calculate net work minutes. Decimal hours are found by dividing net minutes by 60, which is useful for payroll and timesheet entry.
When to use this calculator
Use this calculator for daily shifts, weekly totals, monthly work-hour records, payroll estimates and freelancer time tracking.
Input tips for better results
Enter clock-in, clock-out and break time for each workday. If a shift crosses midnight, check whether your workplace records it as one shift or two dates.
Compare daily total, weekly total and monthly estimate before submitting a timesheet.
Limitations of this calculator
This calculator estimates hours only. It does not apply overtime law, payroll rounding, paid breaks, leave rules or company policy.
Real-world example
A 9:00 to 18:00 shift with a 60-minute break equals 8 working hours.
Mistakes to avoid
Do not forget unpaid breaks. They can change weekly totals significantly.
Frequently Asked Questions
How do I calculate weekly work hours?
Calculate each day after breaks, then add all daily decimal hours for the week.
How do I calculate monthly work hours?
Add the decimal work hours for every working day in the month.
Does it support overnight shifts?
Yes, if the end time is earlier than start time, it is treated as the next day.
Helpful tips
- Enter clock-in, clock-out and break time for each workday. If a shift crosses midnight, check whether your workplace records it as one shift or two dates.
- Compare daily total, weekly total and monthly estimate before submitting a timesheet.
- Do not forget unpaid breaks. They can change weekly totals significantly.
- This calculator estimates hours only. It does not apply overtime law, payroll rounding, paid breaks, leave rules or company policy.
Before you rely on the result
This calculator estimates hours only. It does not apply overtime law, payroll rounding, paid breaks, leave rules or company policy. Keep the input values with the result so you can review the assumption later.