Free Online Stopwatch
A simple, accurate online stopwatch with a large, easy-to-read display. Measures time with centisecond (1/100th second) precision. No downloads required - works instantly in your browser on any device.
Stopwatch Features
- Centisecond precision - Accurate to 1/100th of a second
- Large display - Easy to read from a distance
- Keyboard shortcuts - Press Space to start/stop
- Works offline - Once loaded, no internet needed
- Mobile friendly - Works on phones, tablets, and computers
Perfect For
- Exercise and fitness - Track workout duration, planks, rest periods, and interval training
- Sports timing - Time sprints, laps, swimming, and athletic events
- Cooking - Time recipes that need precise durations
- Presentations - Practice and time your talks and speeches
- Games and competitions - Time turns, challenges, and speed runs
- Productivity - Track how long tasks actually take with time tracking
- Science experiments - Measure reaction times and durations
- Music practice - Time practice sessions and tempo exercises
How to Use the Stopwatch
- Click Start or press Space to begin timing
- Click Stop or press Space again to pause
- Click Reset to return to zero
Need More Features?
Check out our other timing tools:
- Lap Timer - Record split times and lap times
- Multi Stopwatch - Time multiple participants simultaneously
- Race Timer - Record finish times for races
- Count Up Timer - Elapsed time tracker
Stopwatch vs Timer
A stopwatch counts up from zero to measure elapsed time, while a timer counts down from a set duration. Use a stopwatch when you want to measure how long something takes. Use a countdown timer when you need to track remaining time.
