Precise online stopwatch with lap times and split tracking.
This free online stopwatch measures time precisely to hundredths of a second. Use it for sports timing, cooking, workouts, presentations, games or any task where you need to measure elapsed time. Click Lap to record split times without stopping the clock.
requestAnimationFrame and Date.now() for accuracy to ~10ms. Browser tab throttling when the tab is in the background may affect precision for very long measurements.