Hours Calculator
Track your daily work hours, subtract breaks, and calculate weekly totals and estimated pay.
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What Is an Hours Calculator?
An hours calculator is a timesheet tool that computes how many hours and minutes you worked based on your clock-in and clock-out times. It subtracts any break time you took during the day and tallies everything into a weekly total. If you enter an hourly wage, the calculator also estimates your gross pay before taxes and deductions.
Keeping accurate records of hours worked is important for freelancers billing clients, hourly employees verifying paychecks, and managers approving timesheets. This calculator removes the mental math and reduces errors that come with manual time tracking, especially when shifts cross midnight or involve variable break durations.
The tool defaults to a Monday-through-Sunday week but you can rename days, add extra rows for split shifts, or remove days you did not work. All data stays in your browser and is never sent to a server.
Example
Imagine you work Monday through Friday, starting at 9:00 AM and finishing at 5:30 PM with a 30-minute lunch break each day. Enter "09:00" as the start time, "17:30" as the end time, and "30" for the break on each of the five rows. Click "Calculate Total" and the calculator shows 40 hours 0 minutes for the week. If your hourly rate is $25, the gross pay field displays $1,000.00.
Frequently Asked Questions
How does the hours calculator handle overnight shifts?
If the end time is earlier than or equal to the start time, the calculator assumes the shift crosses midnight and adds 24 hours to the end time automatically. For example, a shift from 10:00 PM to 6:00 AM is calculated as 8 hours.
Does the calculator account for overtime pay?
The current version multiplies total hours by a single hourly rate. It does not automatically apply overtime rules such as 1.5x after 40 hours. You can manually calculate overtime by noting total hours and applying the appropriate rate to any hours over your overtime threshold.
Can I add more than seven days?
Yes. Click the "Add Row" button to add as many entries as you need. You can use this feature for bi-weekly timesheets, custom schedules, or to track individual project sessions.
How are break times subtracted?
Break time is entered in minutes and subtracted from the total time between the start and end times for that day. If the break exceeds the available working time, the calculator returns zero hours for that day rather than a negative number.
Is my timesheet data saved?
No. All calculations run in your browser and nothing is stored on a server. If you refresh the page, the entries reset to their defaults. For permanent records, copy or screenshot the results before leaving the page.