Online Stopwatch
Precise time tracking with lap timing and statistics
How to Use the Stopwatch
Start Timing
Click the Start button to begin tracking time. The stopwatch will start counting immediately.
Record Laps
Use the Lap button to record split times. Track fastest and slowest laps automatically.
Pause & Reset
Pause to stop timing temporarily, or reset to clear everything and start fresh.
Stopwatch Features
High Precision
Updates every 10 milliseconds for accurate time tracking down to centiseconds (1/100th of a second).
Unlimited Lap Times
Record as many lap times as you need. Perfect for interval training, race timing, and multi-stage activities.
Automatic Statistics
Automatically identifies and highlights your fastest and slowest laps with visual indicators.
Mobile Friendly
Works perfectly on all devices - desktop, tablet, and mobile. No installation required.
Perfect For
Workouts & Training
Track exercise intervals, rest periods, and workout duration.
Sports & Racing
Time races, track lap times, and analyze performance.
Cooking & Baking
Time recipes, track cooking stages, and perfect timing.
Study Sessions
Use Pomodoro technique, track focus time, and manage breaks.
Productivity Tracking
Measure task duration, track billable hours, and optimize workflow.
Presentations & Speeches
Practice timing, track presentation length, and stay on schedule.
Tips for Using the Stopwatch
Use Lap Times for Intervals
Instead of resetting between sets, use the lap function to track multiple intervals in one session. This gives you a complete history and lets you compare performance.
Keep Your Browser Tab Active
For the most accurate timing, keep the stopwatch tab active and visible. Some browsers may throttle background tabs which can affect timing precision.
Review Your Stats
Check the fastest and slowest lap indicators to identify where you can improve. Use this data to optimize your performance over time.