How the Lunch Break Calculator Works
This Lunch Break Calculator computes your net work hours by subtracting unpaid break time from total shift duration. Whether you take a 15-minute rest break or a 60-minute meal break, deducting break time ensures your timesheet reflects actual worked hours.
- Shift Start & End Time: Select when your workday begins and ends.
- Unpaid Break Duration: Specify your break in minutes (e.g., 30, 45, or 60 minutes).
- Calculated Result: The calculator deducts the break and displays net hours in hours/minutes and decimal format.
Lunch Break Chart & Decimal Hours
Standard timecard systems convert break minutes into decimal values to calculate total shift pay. Below is a lunch break chart showing common break lengths, their decimal equivalents, and example shift totals:
| Break Duration | Decimal Hours Deducted | 9 AM to 5 PM Shift Total | 9 AM to 6 PM Shift Total |
|---|---|---|---|
| 15 Minutes | 0.25 hrs | 7.75 hrs (7h 45m) | 8.75 hrs (8h 45m) |
| 30 Minutes | 0.50 hrs | 7.50 hrs (7h 30m) | 8.50 hrs (8h 30m) |
| 45 Minutes | 0.75 hrs | 7.25 hrs (7h 15m) | 8.25 hrs (8h 15m) |
| 60 Minutes (1 Hour) | 1.00 hr | 7.00 hrs (7h 0m) | 8.00 hrs (8h 0m) |
Lunch Break Examples by Duration
30 Minute Lunch Break Examples
A 30-minute lunch break equals 0.5 decimal hours. When subtracted from standard shift durations:
- 9 AM to 5 PM with a 30 minute break: 8 total hours - 0.5 hours = 7.5 net work hours
- 8 AM to 4:30 PM with a 30 minute break: 8.5 total hours - 0.5 hours = 8.0 net work hours
- 8:30 AM to 5 PM with a 30 minute break: 8.5 total hours - 0.5 hours = 8.0 net work hours
45 Minute Lunch Break Examples
A 45-minute lunch break equals 0.75 decimal hours. Common shift subtractions include:
- 9 AM to 5 PM with a 45 minute break: 8 total hours - 0.75 hours = 7.25 net work hours
- 8 AM to 4:45 PM with a 45 minute break: 8.75 total hours - 0.75 hours = 8.0 net work hours
- 9 AM to 5:45 PM with a 45 minute break: 8.75 total hours - 0.75 hours = 8.0 net work hours
60 Minute Lunch Break Examples
A 60-minute (1 hour) lunch break equals 1.0 decimal hour. Common shift subtractions include:
- 9 AM to 6 PM with a 60 minute break: 9 total hours - 1.0 hour = 8.0 net work hours
- 9 AM to 5 PM with a 60 minute break: 8 total hours - 1.0 hour = 7.0 net work hours
- 8 AM to 5 PM with a 60 minute break: 9 total hours - 1.0 hour = 8.0 net work hours
How to Calculate Work Hours Minus Lunch
To manually calculate your work hours minus lunch, follow these steps:
Calculation Formula:
Net Work Hours = Total Shift Duration - (Break Minutes ÷ 60)
Decimal Hours Conversion
Timesheets require hours in decimal format rather than minutes. To convert minutes to decimal hours, divide the break duration in minutes by 60:
- 15 minutes ÷ 60 = 0.25 hours
- 30 minutes ÷ 60 = 0.50 hours
- 45 minutes ÷ 60 = 0.75 hours
- 60 minutes ÷ 60 = 1.00 hour
Related Time Tracking & Shift Tools
If you need to log multi-day shifts or convert total work hours to gross pay, explore our related shift calculators: