Calculate total work hours from clock in/out times, deduct lunch breaks, and convert to decimal format for payroll.
Enter your clock-in and clock-out times for each workday using the HH:MM 24-hour format. For example, enter 09:00 for 9:00 AM and 17:00 for 5:00 PM.
Specify your lunch break duration in minutes for each day. The default is 30 minutes, which will be subtracted from your total worked hours automatically.
If you want to calculate your wages, enter your hourly rate in dollars. You can also adjust the overtime threshold (default 40 hours/week) and overtime multiplier (default 1.5x).
Add or remove workdays as needed. The calculator starts with a standard Monday through Friday week, but you can add weekend shifts or remove days you did not work.
Click "Calculate Hours" to see a detailed breakdown of regular hours, overtime hours, decimal hours, and—if provided—your total earnings for the period.
The total hours worked is calculated by summing the difference between clock-out and clock-in times for each day, then subtracting the total lunch break time converted to hours. Decimal hours are calculated as Hours + Minutes / 60 (e.g., 8 hours 30 minutes = 8.50 decimal hours).
A standard Monday through Friday schedule clocking in at 09:00 and out at 17:00 each day, with a 30-minute unpaid lunch break. Each day yields 7.5 hours of work (8 hours minus 30 minutes), but with a 30-minute lunch that's 7.5 hours per day × 5 days = 40 hours total regular time. Decimal format: 40.00 hours. No overtime applies since the total equals exactly the standard 40-hour threshold.
Working Monday through Thursday for 8 hours each (09:00–17:00 with 30-min lunch), and Friday for 9 hours (09:00–18:00 with 30-min lunch). That gives 8 × 4 = 32 regular hours Mon–Thu plus 8.5 hours on Friday for a total of 40.5 hours. With a $20/hr rate and 1.5x overtime multiplier: regular pay = 40 × $20 = $800, overtime pay = 0.5 × $20 × 1.5 = $15, total weekly pay = $815.
A part-time or half-day shift from 12:00 to 17:00 with no lunch break. Total worked time is 5 hours, which converts to 5.00 decimal hours. This is a common scenario for part-time employees, students, or workers picking up an extra half shift. At $18/hr with no overtime, earnings for this shift would be $90.
Find answers to the most common questions about time card & decimal hours calculator.
