Stopwatch
A stopwatch with laps, accurate to a hundredth of a second.
00:00.00
Keys: Space to start and stop, L for a lap, R to reset once stopped.
Laps
| Lap | Lap time | Total |
|---|
Thanks.Tell us why
Runs on your device.
What you get
- Hundredths of a second
- Laps, ready to paste into a spreadsheet
Questions
How accurate is it?
It measures from your device’s high-resolution clock each time the display updates, rather than counting ticks, so it doesn’t drift. Hundredths are shown; the real limit is how quickly you press the button.
Does it keep running in another tab?
Yes. Browsers slow down pages you aren’t looking at, but the stopwatch works from the start time, so it shows the right time as soon as you come back.
What are the keyboard shortcuts?
Space starts and stops, L records a lap, and R resets when stopped.
Is it free? Do I need an account?
It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.
Missing something, or not working as it should? Tell us