Stopwatch
A precise online stopwatch with lap timing, built for workouts, cooking, experiments, and study sessions. It measures to the hundredth of a second and keeps a clean list of every lap you record.
How to use it
- Press Start to begin counting from zero.
- Press Lap each time you want to record a split time without stopping the clock.
- Press Stop to pause; you can resume from the same time or reset to zero.
- Review your lap list to compare split times, then clear it when you are done.
Key features
- Precision timing down to hundredths of a second
- Unlimited lap and split times in a readable list
- Pause and resume without losing your progress
- Large, glanceable digits that are easy to read mid-workout
Frequently asked questions
Does the stopwatch keep running if I switch tabs?
Yes. The timer is based on wall-clock time, so switching tabs or briefly losing focus does not affect accuracy.
What are lap times used for?
Lap times record how long each segment of an activity took, such as each running lap, each recipe step, or each set of an exercise. Comparing laps shows where you sped up or slowed down.
Is it free and without ads interrupting the timer?
The stopwatch is free to use and the timer stays front and center while you are using it.