Online Stopwatch
Precise stopwatch with lap timer — supports keyboard shortcuts.
00:00:00.000
Space Start/Stop
L Lap
R Reset
Online Stopwatch – Precise Time Measurement
Our free online stopwatch provides millisecond-precision timing directly in your browser. No app download required — simply open the page and start timing. Supports lap recording to track split times for sports, racing, cooking, studying, and more.
Features of This Stopwatch
- Millisecond precision for accurate measurements
- Lap timer — record up to 100 lap times with best/worst indicators
- Keyboard shortcuts — Space to start/stop, L for lap, R for reset
- Copy lap times to clipboard for records
- Dark mode support for comfortable use in any lighting
- No installation — works in any modern browser
Common Uses for a Stopwatch
- Sports training: Time intervals, sprints, and workout sets
- Cooking: Track boiling, baking, and resting times
- Studying: Pomodoro technique and focus sessions
- Presentations: Time your speaking pace
- Science experiments: Measure reaction times and durations