Work Hours Calculator

Use this work hours calculator to enter your start time, end time, and break duration, then get instant, accurate daily work hour totals. Combine with our timesheet calculator for weekly tracking or the payroll calculator for pay estimates.

Enter Your Work Times

Your Results

7.5 hrs
Total Work Hours
Start Time9:00 AM
End Time5:00 PM
Total Duration8h 0m
Break30 min
Net Work Hours7h 30m
Regular Pay$0.00
Overtime Pay$0.00
Total Pay$0.00

What is a work hours calculator?

A work hours calculator computes your net daily work hours by subtracting break time from your total shift duration. It outputs results in both standard (hours:minutes) and decimal formats — ideal for payroll, invoicing, and timesheet submission.

The Work Hours Formula

Net Work Hours = End Time − Start Time − Unpaid Breaks

Example Calculation

Start: 9:00 AM, End: 5:00 PM, Break: 30 min → Gross = 8.0 hours → Net = 7.5 hours (7h 30m). At $20/hour that's $150/day. Use our time duration calculator for quick time-difference checks.

Weekly Hour Examples

22.8 hours per week equals 22 hours 48 minutes. Across 5 workdays, that averages about 4 hours 34 minutes per day; across 4 shifts, it is 5 hours 42 minutes per shift.

35 hours a week can be split into 5 shifts of 7 hours, 4 shifts of 8 hours 45 minutes, or 7 shifts of 5 hours. Use the timesheet calculator to test your own shift pattern.

60 hours a week averages 12 hours/day over 5 days, 10 hours/day over 6 days, or about 8 hours 34 minutes/day over 7 days. Check overtime rules with the overtime calculator.

Common Use Cases

  • Payroll calculations: Getting accurate daily hours for your payroll runs.
  • Timesheet tracking: Logging start and end times accurately for weekly timesheet submission.
  • Part-time work planning: Checking if your part-time schedule meets minimum requirements.
  • Overtime estimation: Tracking hours to see if you cross the overtime threshold.
  • Employee scheduling: Managers balancing shift patterns for their teams.

Common Mistakes to Avoid

  • Forgetting unpaid breaks: Always deduct lunch and unpaid breaks from gross hours.
  • Mixing AM and PM: Entering 5:00 AM instead of 5:00 PM will result in a 20-hour shift calculation.
  • Using decimal hours incorrectly: 7 hours 30 minutes is 7.5 hours, not 7.3 hours.
  • Counting overtime incorrectly: Overtime is typically calculated weekly, not daily.

How to Use

Follow these simple steps

1

Enter Start Time

Select or type the time you began working.

2

Enter End Time

Select or type the time you finished working.

3

Add Break Duration

Enter total break time in minutes (lunch, short breaks, etc.).

4

Get Results

Click "Calculate Hours" to see your total work hours instantly.

Next Steps After Daily Hours

Use these pages when a daily total needs payroll, date-range, part-time, or local-rule context.

Payroll CalculatorTurn net work hours and hourly rate into weekly, bi-weekly, monthly, or annual gross pay.Hours Between Two Dates CalculatorMeasure elapsed hours when your work period spans calendar dates or project windows.Part-Time Hours CalculatorHandle flexible shifts, side jobs, and shorter schedules with part-time guidance.Part-Time Overtime CalculatorCheck whether extra hours need a separate overtime estimate before payroll.Brazil Work Hours CalculatorReview Brazil-specific hours and pay context for local schedules.France Work Hours CalculatorReview French working-time context before using a weekly total.

Frequently Asked Questions

Quick answers to common questions

How do I calculate my total work hours?
Subtract your start time from your end time, then subtract your break duration. For example: 5:00 PM - 9:00 AM = 8 hours, minus 30 min break = 7.5 hours of work.
Does this calculator handle overnight shifts?
Yes! If your end time is earlier than your start time, the calculator assumes you worked through midnight and calculates accordingly.
How do I convert work hours to decimal?
Divide minutes by 60. For example, 7 hours 30 minutes = 7 + (30/60) = 7.5 decimal hours. Our calculator shows both formats.
What is 22.8 hours per week in hours and minutes?
22.8 hours per week is 22 hours 48 minutes because 0.8 × 60 = 48 minutes. Over 5 days, that averages about 4 hours 34 minutes per day.
How many shifts is 35 hours a week?
It depends on shift length: 35 hours can be 5 shifts of 7 hours, 4 shifts of 8 hours 45 minutes, or 7 shifts of 5 hours. Use the timesheet calculator to build the exact week.
If I work 60 hours a week, how many hours is that per day?
60 hours/week equals 12 hours/day over 5 days, 10 hours/day over 6 days, or about 8 hours 34 minutes/day over 7 days. Long weeks may trigger overtime or rest-rule limits depending on location.
What counts as a standard work day?
In most countries, a standard work day is 8 hours. In the US, a standard work week is 40 hours. However, this varies by country and employer.
Should I include paid breaks in work hours?
This depends on your employer's policy and local labor laws. Generally, short breaks (under 20 minutes) are paid, while meal breaks (30+ minutes) are unpaid.