Online Stopwatch

Time something with a simple, accurate stopwatch.

Timing made simple

A stopwatch measures elapsed time from when you start it, for timing anything from a workout to a task to a game. This provides a clean, accurate stopwatch in your browser, so you have one ready without hunting for a physical timer or an app.

Start the stopwatch to begin timing.

Measuring what you can see

The simple act of timing something has a useful side effect: it makes duration concrete. Timing a task shows how long it really takes, which is often quite different from your estimate — people are notoriously bad at judging elapsed time, and a stopwatch settles it. This is handy for anything from cooking to exercise to figuring out where your time actually goes. A browser stopwatch has the advantage of being always available on whatever device you are on, needing nothing to install, and starting instantly. For anything where you need to know how long something took, rather than what time it is, a stopwatch is the right tool, and a straightforward one covers almost every everyday need.

Online Stopwatch FAQ

What is a stopwatch good for?

Timing how long something takes — a workout, a task, a game — as opposed to a timer that counts down to zero.

Why time things at all?

People are poor at judging elapsed time, so timing a task reveals how long it really takes, which is often quite different from the estimate.

Is anything uploaded?

No. It runs entirely in your browser.

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