Stopwatch
A free online stopwatch accurate to a hundredth of a second, with lap times and fastest/slowest highlights. Perfect for sports, workouts, cooking and timing anything.
How to use the Stopwatch
The stopwatch begins counting up immediately.
Tap ‘Lap’ to log a split without stopping the clock.
Tap the main button to pause, then resume right where you left off.
See every split, with the fastest and slowest highlighted.
About this tool
The stopwatch times anything with precision down to a hundredth of a second. Start, pause, resume and record lap splits — all from a clean, easy-to-read display.
Use it for running intervals, gym sets, cooking, timing presentations, science experiments or races. Every lap is logged with its split and total time, and the fastest and slowest laps are highlighted automatically so you can spot your best effort at a glance.
Frequently asked questions
How accurate is the stopwatch?
It measures to a hundredth of a second (10 milliseconds) using a smooth, high-resolution timer, which is plenty precise for sports, workouts and everyday timing.
What are lap times?
A lap (or split) records the time since your last tap of ‘Lap’, while still tracking the overall total. It’s ideal for timing repeated intervals like running laps or gym sets.
Does it highlight my best lap?
Yes — once you’ve recorded a couple of laps, the fastest is marked in green and the slowest in red, so you can compare your efforts instantly.
Can I pause and continue?
Yes. Pausing freezes the time, and resuming continues from exactly where you stopped — nothing is lost.