Online Stopwatch
Press Start to time to 1/100 of a second. Space to start and stop, L for a lap.
| Lap | Split | Total |
|---|
How it works
Press Start to begin timing and Stop to pause. Press Start again to continue from where you stopped, or Reset to clear everything. Each lap records the split (time since the previous lap) and the running total, with the newest lap at the top.
Popular uses
- Running and swimming — tap "Lap" at each lap to compare your splits.
- Study sessions — leave it in full screen to see how long you have really been focused.
- Presentation practice — record a lap at each slide to find where you spend too long.
To count down from a set time, use the Online Timer. More handy utilities are on the everyday tools page.
Frequently asked questions
Is it still accurate if I switch tabs?
Yes. The stopwatch remembers when it started and measures the difference from the current time, so switching tabs or letting the screen dim briefly will not make it lose time.
How do laps work?
Press "Lap" while it is running to record both the total time so far and the split since the previous lap. Once you have three or more laps, the fastest split is shown in green and the slowest in red. Press "Copy laps" to paste the list into notes, a spreadsheet or a chat.
Are there keyboard shortcuts?
Space starts and stops, L records a lap, R resets, and F toggles full screen.