Online Stopwatch
Accurate online stopwatch with lap recording, split times, and precision down to milliseconds.
Ready
00:00:00 .00
Total Laps: 0
Fastest Lap: --:--.--
Lap & Split Times
| Lap # | Lap Time | Overall Time |
|---|---|---|
| No laps recorded yet. Click the flag button while stopwatch is running! | ||
Stopwatch Settings
Precision Timing
High Performance Timer
Calculates elapsed time with high accuracy using browser hardware timestamps (`performance.now`), preventing drift even if you switch tabs.