Stopwatch
Track elapsed time with lap support.
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What is an Online Stopwatch?
An online stopwatch measures elapsed time from a starting point. It includes lap functionality to record split times, making it ideal for timing workouts, races, experiments, or any activity requiring precise time measurement.
How to Use
- Click Start to begin timing. The display updates in real-time with centisecond precision.
- Click Lap to record a split time without stopping the stopwatch.
- Click Pause to stop timing, then Reset to clear all times and laps.
Frequently Asked Questions
How accurate is this stopwatch?
The stopwatch updates every 10 milliseconds and uses Date.now() for timing, which provides millisecond-level accuracy. This is more than sufficient for most timing needs including workouts, cooking, and presentations.
What is a lap time vs total time?
The lap time shows the duration of that specific lap (time since the last lap button press). The total time shows the cumulative elapsed time from when the stopwatch was started.
Can I resume after pausing?
Yes, clicking Start after pausing will resume from where you left off. Only Reset clears the timer back to zero and removes all laps.
