Stopwatch

About this online stopwatch

This free online stopwatch times events down to the centisecond (a hundredth of a second). Press start to begin, stop to pause, and start again to resume without losing your elapsed time. The lap button records a split — showing the time for each individual lap alongside the running total — and the list highlights your fastest and slowest laps automatically. Timing is anchored to your device's high-resolution clock and accumulated across pauses, so it stays accurate and never drifts, even over long sessions. Ideal for sports, running intervals, cooking, experiments and any task where precise timing matters.