Online stopwatch

Stopwatch with lap times.

Looking for the timer?

00:00.00

Keyboard: Space start and stop, L lap, R reset

Keeps running if you switch tabs or reload the page.

Runs in your browser. Nothing uploaded.

How to use the stopwatch

  1. Press Start or the space bar to start timing.
  2. Press Lap or L to record a lap. Each lap shows its own time and the running total, with the fastest and slowest marked once you have three. Copy laps copies them as a table you can paste into a spreadsheet.
  3. Press Stop to pause, then Resume to carry on or Reset to clear it.

Uses for a stopwatch

  • Timing laps, intervals and rest periods during a workout or run.
  • Timing a talk, presentation or speech rehearsal.
  • Science experiments and classroom races.
  • Tracking how long a task really takes, to estimate better next time.

Stopwatch or timer?

A stopwatch counts up from zero until you stop it, so it measures how long something took. A timer counts down from a set time and alerts you when it reaches zero, so it tells you when to stop. For cooking, naps or exam practice, use the online timer.