Stopwatch
Measure elapsed time to hundredths of a second and record both individual lap times and the running total. Files and entered content are not sent to or stored on a server.
How to use
Measure elapsed time to hundredths of a second and record both individual lap times and the running total.
Please note
Reloading or leaving the page clears elapsed time and lap records. Device sleep may affect timing in some browsers.
Stopwatch User guide
Instructions
- Start the stopwatch.
- Record laps while running, or pause and resume the measurement.
- Copy the lap table if needed. Reset clears both the elapsed time and all laps.
Example
Input / settings
Lap at 10 seconds, then lap at 25 seconds
Result / checks
Lap times: 10 s, 15 s · totals: 10 s, 25 s
Please note
- Reloading or leaving the page clears elapsed time and lap records. Device sleep may affect timing in some browsers.
- Up to 500 lap records are supported. Laps can only be recorded while running; no file is generated.