Work Hours Calculator

Calculate your total hours worked.

Enter your start and end times, subtract your break, and instantly see your total work hours, decimal time, and estimated earnings.

Start Date

Start Time

End Date

End Time

Break Duration (minutes)

Hourly Rate (optional, $)

How to Calculate Work Hours

Calculating work hours accurately is essential for payroll, freelance invoicing, project tracking, and overtime compliance. To find total hours worked: subtract the start time from the end time to get gross time, then subtract any unpaid break time to get net hours. For longer periods, multiply by the number of work days. Our calculator handles all of this in seconds — just enter your times and let us do the math.

Frequently Asked Questions

How do I calculate total work hours?

Subtract your start time from your end time to get the duration. If you have breaks, subtract those as well. Our calculator does this automatically and also handles multi-day periods.

How many hours is a full-time job?

In the United States, full-time employment is typically defined as 40 hours per week, or 8 hours per day, 5 days a week. In some countries, the standard is 35 or 37.5 hours per week.

How is overtime calculated?

In the US, overtime is any time worked beyond 40 hours in a single work week. Overtime is typically paid at 1.5× the regular hourly rate, though this varies by location and employment contract.

How do I calculate my paycheck from hours?

Multiply your total hours worked by your hourly rate. For example, 42 hours at $20/hr = 40 × $20 + 2 × $30 (overtime) = $860. Our calculator includes an optional hourly rate field to estimate your earnings.

Does the work hours calculator account for lunch breaks?

Yes! Our calculator lets you enter a break duration in minutes (e.g., 30 or 60 minutes), which will be subtracted from the total time to give you the net hours worked.