training data, not just time
Lap Timer for training
Record every split, see your pace, and export a session when you finish. Built for track work, pool lengths and repeat intervals.
Tap Mark lap at every distance marker. Pace updates from the selected lap distance.
Current session
Your splits
Your splits will appear here as you train.
What is a lap timer?
A lap timer is a stopwatch that records each lap without stopping. It shows every split, the total time and your pace.
How to use the lap timer
- Set the lap distance, for example 400 metres on a running track.
- Press Start or Space to begin.
- Press Mark lap or the L key each time you finish a lap. The newest lap appears at the top.
- Press Reset or R to clear the session, or export your laps as a CSV file.
Why use this lap timer?
- Fastest, slowest and averageSee the shape of your session while you train.
- Big flip digitsLarge flip-card numbers you can read from across the room.
- Full screen in one tapDouble-click the clock or use the full screen button in the top-right corner.
- Free and privateNo account and no install. Your settings stay in this browser.
See the shape of your session
Use a distance that matches your training. A track athlete can set 400 m, a swimmer can set 50 m, and runners can set 1,000 m. The pace column turns each split into a comparable metric.
Track intervals
Compare 200 m or 400 m repeats without losing the total session time.
Swim sets
Track every pool length and review fast or slow sections after the set.
Run pacing
Use kilometre splits to spot whether you are holding a steady effort.