Online Stopwatch
Precise online stopwatch with lap times and split functionality. Track multiple laps, export results, and measure accurately.
Measure active elapsed time and record cumulative splits and individual laps.
Lap
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About Online Stopwatch
Measure active elapsed time and record cumulative splits and individual laps.
Laps at 1.250 and 3.000 seconds have durations 1.250 and 1.750 seconds.
Lap data stays in this mounted page; reload clears it. Copy and CSV export only the captured lap snapshot.
Use Cases
How to use
Measure active elapsed time and record cumulative splits and individual laps.
Pause excludes paused time. Space starts or pauses, L records a running lap, R resets while paused; shortcuts ignore editing and other controls. Rows appear newest first; CSV stays chronological with milliseconds. Device precision is not laboratory certification.
Pro Tips
- Lap data stays in this mounted page; reload clears it. Copy and CSV export only the captured lap snapshot.
Frequently Asked Questions
Laps at 1.250 and 3.000 seconds have durations 1.250 and 1.750 seconds. Pause excludes paused time. Space starts or pauses, L records a running lap, R resets while paused; shortcuts ignore editing and other controls. Rows appear newest first; CSV stays chronological with milliseconds. Device precision is not laboratory certification.
Lap data stays in this mounted page; reload clears it. Copy and CSV export only the captured lap snapshot.