About the online stopwatch
An online stopwatch times how long something takes, right in your browser — start, stop, record laps and reset. It is handy for workouts, cooking, study sessions, presentations and any task you want to time, with no app to install. It runs entirely in your browser.
How Stopwatch works
How to use the stopwatch
- Press Start to begin timing.
- Use Lap to record split times without stopping.
- Press Stop to pause and Reset to clear.
Laps and splits
Lap times let you record intervals — for example each set of a workout or each lap of a run — while the main timer keeps running.
No install needed
It works on any device with a browser, so you can time things on your phone or computer without downloading an app.
Stopwatch vs timer
A stopwatch counts up from zero to measure how long something takes, while a countdown timer counts down from a set time to zero. Use the stopwatch for workouts, study sessions and timing tasks; use a countdown timer when you need an alert after a fixed period. Lap times let you capture intervals without losing the running total.
Common uses
- Time workouts and rest intervals
- Record lap and split times
- Time study or focus sessions
- Time cooking and recipes
- Keep presentations on schedule
- Time games and activities
- Measure how long a task takes
- Use as a quick timer on any device