Work Hour Calculator with Lunch
Calculate your net working hours for the day or determine your clock-out time with our free Work Hour Calculator.
Enter details and click Calculate
Calculate Work Hours and Finish Times
This dual-mode calculator helps you solve two common problems: calculating how many hours you worked, or figuring out when you can leave based on your required hours.
Mode 1: Total Hours
Enter your Start Time, End Time, and Lunch Break. We'll show you exactly how many "paid" hours you accumulated.
Mode 2: End Time
Asking "What time can I leave?" Input your start time, required hours, and lunch duration to get your clock-out time.
Calculation Requirements
- Input your Start Time (e.g., 8:00 AM)
- Input your Hourly Goal (e.g., 8 hours)
- Input your Lunch Break (e.g., 30 minutes)
Get the exact clock-out time instantly (e.g., 4:30 PM).
Frequently Asked Questions
Does this subtract my lunch break?
Yes, simply enter your lunch duration in minutes (e.g. 30 or 60), and the calculator will automatically deduct it from your total time on the job.
Can I calculate when I should leave work?
Yes! Switch to the 'Calculate End Time' tab. Enter your start time, how many hours you need to work, and your lunch break length. It will tell you the exact time you can clock out.
How do I calculate decimal hours?
Our calculator automatically shows your result in both Hours:Minutes format and Decimal Hours format (e.g. 8h 30m = 8.50 hours), which is often used for payroll.
Did you know?
USA federal law requires overtime pay at 1.5x for hours worked over 40 in a workweek.