Lunch Break Calculator: Deduct Break from Work Hours

Calculate your net working hours by automatically deducting your unpaid lunch break. Perfect for decimal payroll entry.

Use this calculator to find your net working hours. Simply enter your shift times and your unpaid lunch duration. The tool automatically converts your final time into decimal format for easy timesheet entry.

Enter the total minutes of unpaid break time to deduct.

Did you know? 7 hours and 15 minutes is written as 7.25 in payroll systems. 7 hours and 45 minutes is 7.75. Always use the decimal result for your pay calculations.

Minutes to Decimal Conversion Chart

15 Mins

0.25

30 Mins

0.50

45 Mins

0.75

60 Mins

1.00

Why Use a Lunch Break Deduction Tool?

For most hourly employees, time spent on a lunch break is unpaid. If your timesheet shows 8.5 total hours on site but you took a 30-minute break, you are only paid for 8.0 net hours.

Failing to deduct your lunch accurately can lead to payroll errors. Our tool ensures you have the exact decimal format needed for software like ADP, Gusto, or QuickBooks.

Payroll Accuracy Tip

Always verify your state's labor laws. For example, California labor law requires a 30-minute unpaid meal break if you work more than 5 hours in a day. Deducting this correctly keeps your personal records accurate.

Net Working Hours Formula

Step 1Total Hours on Clock
—
Step 2Unpaid Lunch Duration
=
Final ResultActual Paid Hours

Common Questions

How do I calculate hours minus lunch?

To calculate hours minus lunch: 1. Determine total time on site (e.g., 9am to 5pm is 8 hours). 2. Convert your lunch break to decimal hours (30 minutes = 0.5 hours). 3. Subtract the break from total time (8 - 0.5 = 7.5 hours).

What is 45 minutes in decimal time?

45 minutes is 0.75 in decimal hours. You can calculate any minute-to-decimal conversion by dividing the minutes by 60 (e.g., 45 / 60 = 0.75).

Are lunch breaks mandatory and paid?

Federal law (FLSA) does not require meal breaks, but many states (like CA, NY, IL) do. Generally, breaks of 30+ minutes are unpaid if the employee is completely relieved of work duties.