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TinyBizTools

Hours Calculator - Free Work Hours with Breaks

Free hours calculator for work shifts, breaks, overtime, and gross pay. Add clock-in and clock-out times for weekly totals.

Hours Calculator

Enter start and end times to calculate work hours, breaks, overtime, and optional pay.

Use this hours calculator to turn clock-in and clock-out times into total work hours. Enter each day worked, subtract unpaid breaks, and review weekly total hours, regular hours, overtime hours, gross hours, break time, and optional gross pay.

This page is built for the broad “how many hours did I work?” problem. For a payroll-specific version, use the payroll clock calculator. If lunch breaks are the main issue, use the time card calculator with lunch break.

How to Use the Hours Calculator

  1. Enter start and end times for every shift you want to count.
  2. Add unpaid break minutes for lunch, meal periods, or off-clock breaks.
  3. Leave unused days blank so they are ignored.
  4. Set the overtime threshold if you need regular and overtime totals.
  5. Add hourly rate only when you want a gross pay estimate.

The default example uses Monday through Friday, 9:00 AM to 5:00 PM, with a 30-minute unpaid break. Replace those times with your actual work schedule.

Hours Worked Formula

Gross hours = End time - Start time
Paid hours = Gross hours - Unpaid break time
Total hours = Sum of paid hours across all shifts

If you enter an hourly rate:

Regular pay = Regular hours x Hourly rate
Overtime pay = Overtime hours x Hourly rate x Overtime multiplier
Gross pay = Regular pay + Overtime pay

Example

DayStartEndBreakPaid Hours
Monday9:0017:0030 min7.5
Tuesday9:0017:0030 min7.5
Wednesday9:0017:3030 min8.0
Thursday8:3017:0030 min8.0
Friday9:0016:3030 min7.0
Total38.0

In this example, total paid work time is 38 hours. At $24 per hour, gross pay before deductions would be $912.

When to Use a Dedicated Time Card

Use this hours calculator when you need a quick total. Use the time card calculator when you are checking employee time cards or weekly payroll records. Use the timesheet calculator when you need a weekly summary that can be copied into a payroll or invoicing workflow.

Common Mistakes

  • Entering paid breaks as unpaid breaks - Only subtract break time that should not count as paid work.
  • Using 7.30 for 7 hours 30 minutes - Decimal hours should be 7.5, not 7.30.
  • Forgetting midnight shifts - A shift from 10:00 PM to 6:00 AM crosses into the next day.
  • Averaging overtime across pay periods - Many payroll rules calculate overtime by workweek, not by averaging two weeks.
  • Treating gross pay as take-home pay - Gross pay is before taxes, benefits, deductions, reimbursements, and other payroll adjustments.

Related Tools

Frequently Asked Questions

How do I calculate hours worked?
Subtract the start time from the end time, then subtract unpaid break time. Repeat for each shift and add the net hours together.
Yes. Enter unpaid lunch or break minutes for each day. The calculator subtracts them from gross shift time to show paid hours.
Yes. Enter an overtime threshold, such as 40 hours per week, and the calculator separates regular hours from overtime hours.
Yes. Add an hourly rate to estimate gross pay before taxes, benefits, deductions, tips, or payroll adjustments.
Yes. If the end time is earlier than the start time, the shift is treated as crossing midnight.
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