Stopwatch
Precision stopwatch with lap tracking and best / worst analysis.
Free & unlimited
Ready
00:00:00.000
0 seconds elapsed
All processing happens in your browser. No data is sent to any server.
About this tool
- 1
Start the stopwatch
Click Start to begin timing. The display updates in real time with high precision.
- 2
Record laps
Press the Lap button to record split times without stopping the main timer.
- 3
Stop and reset
Click Stop to freeze the timer and Reset to clear all times and lap records.
- Use lap tracking to time individual intervals, like splits in a workout or durations of meeting segments.
- The stopwatch continues running even if you scroll away, so you can use other tools and come back.
- Review your lap history to identify which segments took the longest and where to improve.
- Millisecond-precision timing display
- Unlimited lap recording with split and cumulative times
- Start, stop, and resume without losing progress
- Lap history table with individual and total durations
- Time workout intervals, sprints, or rest periods during training
- Measure task durations for productivity tracking and time studies
- Record cooking times for recipes with multiple steps
- Time presentations and speeches to stay within allotted slots
It uses the browser high-resolution timer, which is accurate to the millisecond. For most practical uses this is more than sufficient.
You can copy the lap table data and paste it into a spreadsheet for further analysis.