Stopwatch
Time anything to a hundredth of a second. Record laps, see your best and worst, and keep the results.
Use the Stopwatch
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How to use the Stopwatch
- Press Start (or the space bar) to begin timing.
- Press Lap (or L) to record a lap without stopping.
- Press Pause to stop and Resume to continue.
- Copy the laps or download them as a CSV file.
About this tool
The stopwatch uses your browser's high-resolution timer, so it stays accurate even if the page is busy. The fastest lap is shown in green and the slowest in red once you have two or more laps.
Good to know: If you switch away from the page the stopwatch keeps counting, but the display only updates while the page is visible. Results are not saved when you close the page.
Free to use. Your inputs are processed in your browser and are not sent to our servers. Results are for general information; see the disclaimer.
Frequently asked questions
How accurate is it?
It displays hundredths of a second using a high-resolution browser timer. Real-world accuracy is limited by how fast you press the buttons.
Does it keep running in another tab?
Yes. The time is measured from the clock, not by counting, so it is correct when you return.
Can I save my laps?
Use Copy laps or Download CSV before you leave the page. They are not stored automatically.