Stopwatch & Lap Timer
High-precision online stopwatch with lap splits. Hundredth-of-a-second display, no install needed.
Stopwatch & Lap Timer
High-precision stopwatch with lap splits.
About the Stopwatch & Lap Timer
Click Start to begin timing, Lap to record split and total times, Stop to pause and Reset to clear. The stopwatch displays hours, minutes, seconds and hundredths-of-a-second using a fixed-width monospace font for clean reading.
Each lap shows lap number, split time (since the last lap) and total time. Useful for workouts, cooking, presentations, or any quick timing job.
How it works
The stopwatch uses performance.now() for high-precision timing — accurate to roughly 16 milliseconds (a single browser frame). The display refreshes every animation frame while running. Lap times capture the elapsed time at each Lap click and compute the split (since the previous lap) and total elapsed time.
Examples
- Click StartDisplay ticks 00:00.00 → 00:00.01 → ...
- Click Lap at 1m 23.45sLap 1 entry · split 1:23.45 · total 1:23.45