Stopwatch
A precise stopwatch that runs entirely in your browser. Start, pause, reset and record lap times — great for workouts, cooking and experiments.
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How to Use the Stopwatch
- Press Start to begin timing.
- Press Lap to record a split without stopping.
- Press Pause to freeze the timer.
- Press Reset to clear everything back to zero.
Popular Stopwatch Uses
- Workout interval timing
- Cooking timer
- Study sessions
- Running lap times
- Board game turns
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Frequently Asked Questions
How accurate is the online stopwatch?
It measures with millisecond precision using your browser’s high-resolution timer — accurate enough for workouts, cooking and casual racing.
Can I record lap times?
Yes. Press Lap while the timer is running to record a split. Laps are listed below the display with individual and total times.
Does the stopwatch keep running if I switch tabs?
Yes, the timer keeps running in the background. Browsers may throttle background tabs slightly, so for critical timing keep the tab visible.
Do I need to install anything?
No. The stopwatch runs entirely in your web browser on phone, tablet or desktop — no app or signup needed.