Stopwatch
Start, stop, lap, and reset with millisecond precision. Track multiple laps.
How to Use Stopwatch
1
Click Start to begin timing
2
Click Lap to record split times
3
Click Stop to pause, Reset to clear
Key Features
Millisecond precision
Lap recording
Clean, readable display
Tips & Tricks
Use lap feature for interval training
Keyboard shortcuts: Space = Start/Stop
Frequently Asked Questions
The stopwatch uses the browser's high-resolution timer (performance.now) for millisecond-level accuracy.