Stopwatch & Countdown Timer

Frequently asked questions

How do lap times work?

While the stopwatch is running, each press of Lap records the elapsed time at that moment, so you can compare splits during a workout or race.

How precise is the display?

It shows hundredths of a second and refreshes about 30 times per second, which is accurate enough for sports and everyday timing.

Does it keep running if I close the tab?

No. The timer relies on your browser session, so closing or reloading the page resets everything. Keep the tab open for long measurements.

Can I use it on a phone?

Yes. The buttons are large and touch friendly, so it works well as a quick stopwatch on mobile browsers.