Online Stopwatch

Free online stopwatch with lap timing. Accurate timing for sports, experiments, and any timed activities. Start, stop, and record laps.

A simple, accurate online stopwatch. Start, stop, reset, and record lap times with precision. Perfect for timing sports, experiments, cooking, or any activity that needs to be measured.

Common use cases

  • Sports and athletic timing
  • Cooking and recipe timing
  • Scientific experiments
  • Gaming speedruns
  • Any timed activity or process

How to use

  1. Click Start to begin timing
  2. Click Lap to record split times
  3. Click Stop to pause the timer
  4. Click Reset to clear and start over
  5. View all recorded lap times

FAQ

How accurate is the stopwatch?

The stopwatch updates every 10 milliseconds, which is sufficient for most timing needs.

Can I record multiple laps?

Yes, click Lap while the timer is running to record as many split times as needed.

Does it work offline?

Once loaded, the stopwatch runs in your browser and works without an internet connection.