Stopwatch
Measure elapsed time with precision and record laps. Great for workouts and races.
ready
Quick answer
Press Start to time anything to the hundredth of a second, Lap to record split times, and Reset to clear; Space starts and stops it from the keyboard.
- Press Start (or Space).
- Press Lap to record a split.
- Press Reset to start over.
Reviewed by the TimerHub team · Last reviewed November 4, 2026 · Data sources
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How to use it
- 1
Press Start
Press Start to begin timing
- 2
Record Laps
Use the lap button to record split times
- 3
Pause/Resume
Pause and resume timing as needed
- 4
Reset
Reset to start a new timing session
Perfect for every need
Sports & Athletics
Time races, sprints, and athletic performance with precision.
- Track and field events
- Swimming laps
- Running intervals
- Cycling segments
Fitness & Workouts
Monitor exercise duration and rest periods during training.
- Plank holds and static exercises
- Rest periods between sets
- Cardio session duration
- Circuit training
Work & Productivity
Track time spent on tasks and projects for better time management.
- Meeting duration
- Task completion time
- Project time tracking
- Break duration
Cooking & Kitchen
Time cooking processes that require precise monitoring.
- Boiling eggs
- Steaming vegetables
- Brewing coffee
- Resting dough
Advanced Stopwatch Features
Professional-grade timing capabilities built in.
- Millisecond precision — accurate to 1/100th of a second
- Unlimited lap times with best, worst, and average statistics
- Background operation continues when the tab is inactive
- Mobile optimized with touch-friendly controls
- Keyboard shortcuts: spacebar to start/stop, L for laps
Frequently asked questions
How accurate is this stopwatch?
The stopwatch shows hundredths of a second and measures elapsed wall-clock time, making it suitable for most timing needs including sports and fitness.
Can I use keyboard shortcuts?
Yes! Press the spacebar to start/stop the stopwatch and L to record lap times. This makes it easy to operate without taking your eyes off the activity.
Does it work on mobile devices?
Absolutely! The stopwatch is fully optimized for mobile devices with large, touch-friendly buttons and a responsive design that works on all screen sizes.
How many lap times can I record?
There's no limit to the number of lap times you can record. The interface automatically scrolls to accommodate any number of laps with statistics.