Need to time a workout, track cooking durations, or measure task completion times? Our online stopwatch provides millisecond precision with lap recording, best/worst split comparison, and instant pause/resume - all in your browser, no app needed.
How to Use This Online Stopwatch
Click Start to begin timing. The display shows hours, minutes, seconds, and centiseconds (1/100th of a second). Click Lap to record split times - each lap shows both the interval time and cumulative time. Click Pause to stop temporarily without losing your time, then Start again to continue. Reset clears everything for a fresh start.
Why Use an Online Stopwatch?
Your phone stopwatch works fine, but it's buried in apps and you have to unlock your screen. This browser stopwatch is always one click away - bookmark it and it's instant. Plus, the large display is easier to read from a distance during workouts or cooking. Best of all, the lap comparison feature automatically highlights your fastest and slowest splits - something most phone stopwatches don't do.
Perfect For
- Sports training: Track running laps, swimming splits, cycling intervals
- HIIT workouts: Time work periods and rest intervals
- Cooking: Monitor multiple dishes with lap markers
- Productivity: Time-box tasks using the Pomodoro technique
- Gaming: Speedrun timing with split comparisons
- Education: Timed tests and exam practice
Key Features
- Centisecond precision: Displays time to 1/100th second accuracy
- Unlimited laps: Record as many splits as you need
- Smart comparison: Green highlight for best lap, red for worst
- Pause/Resume: Stop and continue without losing progress
- Clean interface: Large, readable numbers even from distance
- No installation: Works instantly in any modern browser
FAQ
Q: How accurate is this online stopwatch?
A: The stopwatch displays centiseconds (1/100th of a second) and uses high-resolution browser timing. For most practical purposes like sports timing or cooking, it's more than accurate enough. The actual precision depends on your device's performance.
Q: Will the timer keep running if I switch tabs?
A: Yes! The stopwatch continues running in the background even if you switch to another browser tab. The time is calculated using timestamps, so you won't lose any accuracy when returning to the tab.
Q: Can I export or save my lap times?
A: Currently, lap times are displayed on screen but not persisted. If you need to save them, you can screenshot the results or manually copy the times. We're considering adding export functionality in a future update.