Stopwatch
Accurate online stopwatch with lap times.
00:00.00
Shortcuts: Space = start/pause, L = lap, R = reset
How it works
- Press the space bar or Start to start and pause.
- Press L or Lap to record a lap, R to reset.
- The fastest lap is highlighted in green, the slowest in red.
FAQ
›How accurate is the online stopwatch?
Time is measured with the browser's high-resolution clock and shown to the hundredth of a second. Accuracy does not depend on how often the display redraws.
›Does it keep running in a background tab?
Yes. The stopwatch counts from the moment it started, so it shows the correct time when you come back.
›What's the difference between lap and split time?
Lap time is the time since the previous lap; split time is the total time since the stopwatch started.