How accurate is the online stopwatch?
Our stopwatch uses the browser"s performance API for high-precision timing, making it accurate to the millisecond.
Stopwatch
A precise stopwatch with lap timing. Press Space to start/stop, L for lap, R to reset.
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Online Stopwatch with Lap Timer
Measure time with precision using our free online stopwatch. Perfect for workouts, cooking, experiments, or any activity that requires accurate time tracking.
How It Works
Click the "Start" button to begin timing. Use the "Lap" button to record lap times, and "Reset" to clear all times. The stopwatch continues running even when you switch tabs or minimize your browser.
Key Features
- Precise time measurement down to the millisecond
- Lap timing to record multiple intervals
- Keyboard shortcuts for easy control (Space: Start/Stop, L: Lap, R: Reset)
- Responsive design that works on all devices
- No installation required - works directly in your browser
- Free to use with no registration needed
Keyboard Shortcuts
- Space - Start or stop the stopwatch
- L key - Record a lap time (while running)
- R key - Reset the stopwatch (when stopped)
Frequently Asked Questions
Can I use the stopwatch in fullscreen mode?
Yes, you can use your browser"s fullscreen mode (F11 key on most browsers) for a larger, distraction-free view.
Will the stopwatch work if I switch to another tab?
Yes, the stopwatch will continue running in the background, though some browsers may limit timing accuracy in inactive tabs.
Is there a limit to the number of laps I can record?
While there"s no strict limit, performance may be affected with an extremely high number of laps (thousands).
Can I use the stopwatch on my mobile device?
Absolutely! The stopwatch is fully responsive and works on smartphones and tablets.
Is the stopwatch free to use?
Yes, our online stopwatch is completely free with no hidden charges or registration required.
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