Add work sessions and total up the hours worked instantly. 100% free, no sign-up — nothing ever leaves this browser tab.
Timesheet Calculator lets you add multiple start and end times across a day or week, then totals up the hours and minutes worked automatically — handy for freelancers, hourly employees, and anyone tracking billable time.
Manually adding up clock-in and clock-out times across several sessions is tedious and easy to get wrong. This tool adds each session for you and gives a clean total, without needing a full time-tracking app or spreadsheet formulas.
No installs, no accounts — just your browser doing the work.
Scroll up (or tap the button above) to load the tool instantly — no account or install needed.
Add your file, text, or numbers into the tool above.
Sensible defaults are already selected — tweak anything you need.
Your result is generated locally and ready in seconds — no waiting room.
Track multiple start/end pairs and get one combined total.
Your time entries stay in this browser tab and are never uploaded.
The total updates automatically as you add or edit sessions.
Because Timesheet Calculator runs locally, teams handling sensitive data — finance, HR, legal, operations — can use it without the compliance questions that come with uploading documents to a third-party server.
Enter each session separately if it spans midnight, so the calculation stays accurate.
This version focuses on totaling hours and minutes; multiply by your rate separately for pay.
No. Timesheet Calculator runs entirely in your browser.