Online Stopwatch Timer with Lap Counter
Track time with millisecond precision using our free digital stopwatch. Ideal for athletic training, scientific experiments, cooking timers, and productivity tracking.
Lap Times History
Professional Stopwatch Features
- Millisecond precision - Accurate to 1/100th of a second
- Unlimited lap times - Record splits without stopping
- Full-screen mode - Better visibility for competitions
- Responsive design - Works on all devices and screen sizes
- No installation - Runs directly in your web browser
- Dark mode - Reduces eye strain in low light
How to Use the Stopwatch
Start Timing
Click the Start button to begin the stopwatch. The timer will begin counting up from 00:00:00.00.
Record Laps
While timing, click Lap to record intermediate times without stopping the main timer. Perfect for tracking race splits or workout intervals.
Pause or Reset
Click Stop to pause timing. Click Reset to clear all times and prepare for a new session.
Common Applications
🏃 Sports Training
Time sprints, track intervals, and measure recovery periods with lap timing functionality.
🧪 Science Experiments
Record precise reaction times and experimental durations with millisecond accuracy.
👩🍳 Cooking & Baking
Perfect for timing multiple dishes simultaneously with the lap feature.
📚 Productivity
Implement Pomodoro technique or time-blocking strategies with accurate tracking.
Why Choose Our Online Stopwatch?
Our free digital stopwatch provides professional-grade timing functionality without any downloads or installations. Unlike physical stopwatches that can be lost or damaged, this web-based timer is always available when you need it.
The lap timing feature sets our tool apart from basic online stopwatches, making it ideal for coaches, athletes, scientists, and professionals who need to track multiple intervals. The millisecond precision ensures accuracy for competitive timing and scientific measurements.
As part of AgeCalcAI's suite of time calculation tools, this stopwatch integrates seamlessly with our other utilities like the countdown timer and time zone converter, providing a comprehensive time management solution.
Ready to Improve Your Time Tracking?
Bookmark this page for quick access to your free professional stopwatch anytime you need precise timing.