Online Stopwatch
Simple stopwatch with lap times.
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About the Online Stopwatch
This online stopwatch measures time to one hundredth of a second and lets you record lap times. It works in any browser, so you can use it for workouts, races, cooking, presentations or timing how long a task really takes.
How to use the Online Stopwatch
- Click Start to begin timing.
- Click Lap to record a lap time while the clock keeps running.
- Click Stop to pause, and Start again to continue.
- Click Reset to clear the time and the laps.
Good to know
- The stopwatch reads the device clock, so the time stays accurate even if the browser is busy.
- Lap times show the total elapsed time at the moment you press Lap.
- Keep the page open while timing. If you close or reload it, the time is reset.
Frequently asked questions
How accurate is the stopwatch?
It is accurate to about one hundredth of a second, though your own reaction time when pressing the buttons will add a small delay.
Can I use it on my phone?
Yes. The page is designed for small screens and large buttons.
Are laps saved after I close the page?
No. Copy your laps somewhere before you leave the page.