Online Stopwatch
A simple online stopwatch with lap timing.
Assumptions used in this calculation
- No persistence: Elapsed time and laps are kept only in the browser session and reset to zero if the page is refreshed or closed.
About this calculator
The online stopwatch lets you start, stop and reset a timer, and record lap times, useful for workouts, presentations or any timed activity.
Worked example
Timed workout with laps
Result: Live elapsed time
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