Stopwatch

About the Stopwatch

The Stopwatch is an online timer that counts up with hundredths of a second and lets you record laps. Use it for workouts, races, experiments, cooking, speeches and timing tasks.

The stopwatch measures real elapsed time using your device's clock, so it stays accurate even if the page is busy. Pressing Lap records the time at that moment without stopping the watch, and the lap list shows each recorded time. Reset clears everything. Keep the tab open for timing; background tabs may update the display less often although the elapsed time remains correct.

How to use it

1. Press Start to begin.
2. Press Lap to record a split time.
3. Press Pause (the Start button changes) to stop and Resume to continue.
4. Press Reset to clear the time and laps.

Tips and good to know

• The display is accurate, but human reaction time adds about 0.2 seconds.
• Use a countdown for fixed periods.
• Write down lap times before resetting.

Frequently asked questions

Does it keep running if I switch tabs?

Yes, the elapsed time is calculated from the clock.

How many laps can I record?

Many; the list scrolls.

Can I save the results?

Copy them manually.