Free Work Hours Calculator
Work out your hours per day, week, month and year from a shift's start, end and break.
What is the Work Hours Calculator?
Work out your hours per day, week, month and year from a shift's start, end and break.
Daily hours equal the end time minus the start time minus the unpaid break. That figure is multiplied by days per week for weekly hours, and by 52 minus your weeks off for the yearly total; the monthly figure is the yearly total divided by 12.
Hours, dates and records are small details that cause big arguments when they are missing. Keeping a clean log protects everyone involved.
How to use the Work Hours Calculator
Using the work hours calculator takes a minute or two. Your entries are saved in this browser, so you can come back later and carry on.
Step 1
Fill in the names, dates or hours in the rows, adding more where needed.
Step 2
Check the totals calculated at the bottom of the preview.
Step 3
Download or print the log and keep a copy with your records.
Tips for better results
Use weeks off to include vacation, public holidays and sick leave so the annual total reflects hours you actually work. The yearly figure is handy for converting an hourly wage into an annual salary estimate.
Record entries on the same day while they are fresh.
Keep dated copies. They are useful for invoices and disputes.
Privacy and where your data goes
Everything you type into the work hours calculator stays on your own device. Zapxa does not receive your numbers or documents. If you clear your browser data, your saved entries will be removed, so download a PDF of anything you want to keep.
Frequently asked questions
How are average monthly hours calculated?
The yearly hours (daily hours x days per week x working weeks) are divided by 12. Because months differ in length, treat it as an average rather than the exact hours in a given month.
Does the break count as work time?
No. The unpaid break in minutes is deducted from each day's span, so a 09:00 to 17:30 shift with a 30-minute break gives 8 hours.
Is the work hours calculator free?
Yes. It is free to use with no signup, no watermark and no usage limits.
Is my data private?
Yes. Your inputs are processed in your browser and saved only in its local storage. They are not uploaded to our servers.
Does it work on mobile?
Yes. Zapxa works on phones, tablets and desktops. Use the print button or download a PDF to keep a copy.
Related Work & Time tools
- Weekly Timesheet — Record hours worked each day of the week with a weekly total.
- Monthly Timesheet — Log hours for every day of a month and total them at the end.
- Time Log — Log tasks with start and end times to see where your time goes.
- Employee Leave Tracker — Track leave taken and remaining balances for each employee.
- Attendance Tracker — Record who attended each day and count presents and absences.
- Employee Schedule — Plan staff shifts by day with names, times and roles.