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Free Work Hours Calculator - Weekly Timesheet and Overtime Tool
Use this free work hours calculator to turn a week of clock in and clock out times into total hours, overtime, and estimated pay. It works as a weekly timesheet calculator with lunch breaks, handles overnight shifts, and gives you a clean hours calculator with results you can use for payroll, freelance invoicing, or checking your own paycheck - no sign-up required.
| Day | Time in | Time out | Break (min) | Hours |
|---|
What is a work hours calculator and why it matters
A work hours calculator takes your clock in and clock out times for each day of the week, subtracts any unpaid breaks, and adds everything up into a total for the week - including splitting out overtime once you pass a set threshold. Doing this by hand with a paper time card is where small errors creep in: a missed break deduction, a shift that crosses midnight, or a simple subtraction mistake can quietly shortchange or overpay someone. A reliable timesheet calculator matters for hourly employees checking their own paycheck, for freelancers billing clients by the hour, and for small business owners running payroll without dedicated software - it turns a week of raw punch times into numbers everyone can trust.
How this calculator works
For each day, the calculator takes your time in and time out, converts both to minutes since midnight, and finds the difference. If the time out is earlier than the time in - an overnight shift, like 10 PM to 6 AM - it automatically adds 24 hours so the shift is not counted as negative. It then subtracts your entered break minutes for that day. Once every day is calculated, the week's total hours are compared against your overtime threshold: any hours up to the threshold count as regular hours, and anything beyond it is counted as overtime hours, multiplied by the overtime rate you set, to produce an estimated total pay figure.
Common searches this calculator answers
- How many hours did I work this week?
- How do I calculate hours worked with a lunch break?
- How is overtime pay calculated for hourly employees?
- How do I convert clock in and clock out times into decimal hours?
- How much will my paycheck be based on hours worked?
- How do I calculate hours for an overnight or night shift?
How to use it
- Enter your hourly rate, and adjust the overtime threshold and multiplier if your workplace uses different rules.
- For each day worked, enter the time in and time out using the 24-hour time picker.
- Enter any unpaid break in minutes for that day - leave it at 0 if there was none.
- Leave days you did not work blank; the calculator skips them automatically.
- Check the totals at the bottom for your total hours, regular hours, overtime hours, and estimated pay.
Tips
- For an overnight shift, just enter the actual clock times (e.g. 22:00 to 06:00) - the calculator detects the shift crosses midnight automatically.
- Only include unpaid breaks in the break field; paid breaks should not be deducted from your hours.
- Check your local labor law or company policy for the correct overtime threshold and multiplier before relying on the pay estimate.
- If you are billing a client as a freelancer, treat the "regular hours" total as your billable hours and skip the overtime settings.
- Save a screenshot or note the weekly totals if you need a personal record alongside your employer's official timesheet.
Frequently asked questions
Is this work hours calculator free to use?
Yes. It is completely free, runs in your browser, and does not require an account or sign-up.
Does it handle overnight or night shifts?
Yes. If your clock out time is earlier than your clock in time, the calculator assumes the shift crossed midnight and adds 24 hours automatically, so overnight shifts are calculated correctly.
How is overtime calculated?
Once your total weekly hours pass the overtime threshold you set (40 hours by default), every hour beyond that is counted as overtime and multiplied by your overtime multiplier (1.5x by default) when estimating pay.
Can I use this as a timesheet calculator with lunch breaks?
Yes. Enter your unpaid break in minutes for each day and it will be subtracted from that day's total before the weekly hours are added up.
Is the estimated pay figure accurate for payroll purposes?
It is a close estimate based on the rate, threshold, and multiplier you enter, but actual payroll can involve taxes, deductions, and rules specific to your employer or region. Use it for planning and double-checking, not as an official pay stub.
Can I use this for a freelance or contract timesheet?
Yes. Enter your billing rate as the hourly rate and use the total or regular hours figure as your billable hours for the week - just ignore the overtime settings if they do not apply to your contract.
What if I did not work every day of the week?
Leave the time in and time out fields blank for any day you did not work. The calculator only counts days where both times are filled in.
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