How to use the stopwatch
Press Start to begin timing. Press Lap while the stopwatch is running to record the current lap and total split time. Pause the stopwatch without losing the elapsed time, then press Resume to continue.
Free online sports chronograph
Online Stopwatch with Laps and Sound
Measure elapsed time to one hundredth of a second, record laps and splits, and use clear sound cues and fullscreen controls.
FinishClassic Red
THE CLOCK TIMERPRECISION CHRONOGRAPH
READY
00:00.00
CURRENT LAP00:00.00
Space Start or pauseL Record lapR ResetF Fullscreen
Session record
Lap times
Your recorded laps will appear here.
Lap time and split time
A lap time measures only the latest section. A split time shows the total elapsed time from the start. The session list highlights the fastest lap and slowest lap once at least two laps have been recorded.
Useful for sport, work and study
Use the stopwatch for running, circuit training, swimming drills, classroom activities, presentations, experiments, productivity sessions or any task that needs accurate upward timing.
Keyboard and fullscreen controls
Use Space to start or pause, L to record a lap, R to reset and F to enter fullscreen. The large chronograph display remains easy to read from across a room.
Stopwatch sound cues
Keep Sound On to hear clear feedback when the stopwatch starts, pauses, resumes or resets. Sound is optional and can be switched off without affecting the elapsed time or recorded laps.
Need to count down instead? Open the online countdown timer with alarm. For repeated exercise rounds, use the interval workout timer.
Online stopwatch questions
Does the stopwatch keep running in another tab?
Yes. It calculates elapsed time from the browser’s high-resolution clock, so the displayed time catches up correctly when you return to the tab.
Are my lap times saved online?
No. Lap times remain only on the current page and disappear when you reset, clear the list or reload the page.
Can I use the stopwatch on a phone?
Yes. The chronograph, controls, lap list and responsive advertisement space resize for mobile screens.