Precise stopwatch with lap recording
Free online stopwatch accurate to 1/100th of a second. Start, pause, reset, and record lap times. Shows split time (time since last lap) and cumulative time for each lap. Works entirely in your browser — no install needed. The timer continues running even when you switch to other browser tabs. Perfect for timing workouts, sports events, cooking, presentations, and any activity that needs precise timing.
An online stopwatch is always available — no app download, no battery drain, no searching for a physical stopwatch. Use it for timing workout intervals and rest periods, recording lap times for running or swimming, timing cooking steps, measuring presentation or speech duration, timing game rounds, or any activity where you need to know exactly how long something takes. The lap feature is especially useful for tracking splits in running or swimming.
Each lap shows two times: split time (time since the previous lap) and cumulative time (total time elapsed). For example, if Lap 1 is at 1:30 and Lap 2 is at 3:00, the split time for Lap 2 is 1:30 (time for that lap) and the cumulative time is 3:00 (total elapsed). Split times help you compare individual lap performance, while cumulative times show your overall progress.
The stopwatch updates every 10ms (1/100th of a second), which is accurate enough for most timing needs.
Yes, once the page is loaded, the stopwatch works entirely in your browser without an internet connection.
Yes, there is no limit on the number of laps you can record. All laps are displayed with their split time and cumulative time.
No, the timer continues running even if you switch to another tab. The browser keeps the interval running in the background.
Currently the tool does not have an export feature. You can manually copy the lap times from the screen. A copy/export feature may be added in a future update.
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