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Stopwatch
A precise stopwatch with lap and split times, accurate to hundredths of a second.
00:00.00
Space start/stop · L lap · R reset
What this does
Measure elapsed time to a hundredth of a second, with lap and split recording. Start, stop and reset with keyboard-friendly controls; each lap shows both its own duration and the total time so far.
How to use it
- 1Press Start to begin timing.
- 2Press Lap to record a split without stopping the clock.
- 3Stop to pause and Reset to clear.
Examples
- Time laps around a track
- Measure how long a task actually takes
Frequently asked questions
- How accurate is the stopwatch?
- It uses a high-resolution clock and measures the real elapsed time, so it stays accurate to hundredths of a second and doesn't drift while running.
- What is the difference between a lap and a split?
- A lap is the time for that individual segment; the split (or cumulative time) is the total elapsed since you started. Both are shown for each lap you record.