How to use the stopwatch
- Press Start or Space.
- Press Lap or L to record a split; each row shows the lap time and the running total.
- Stop, then Reset (R) to clear. Copy laps gives a tab-separated table you can paste into a spreadsheet.
Online Timer
Product of Stuon
Online Stopwatch
Accurate to the hundredth, with laps and splits you can copy.
00:00.00
Press Start, then Lap to record splits
| Lap | Lap time | Total |
|---|
Space start / stop · L lap · R reset
Lap time vs. split time
A lap time is the time for one segment; the total (split) is the time since the start. With three or more laps, the fastest is marked green and the slowest red. The stopwatch saves its state, so it keeps counting even if you close or reload the tab. Need to add times up afterwards? Use the time addition calculator.
Frequently asked questions
How accurate is this online stopwatch?
It measures from your device clock, so the elapsed time is accurate to a few milliseconds and doesn't drift in background tabs. The display shows hundredths of a second.
Will the stopwatch keep running if I close the tab?
Yes. The start time is saved on your device, so when you reopen the page it shows the correct elapsed time and your laps.
Is there a stopwatch on the main timer too?
Yes, the main focus timer has a simple stopwatch mode. This page adds laps, splits, and hundredths.
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