Online Stopwatch and Timer - Free Lap Timer for Workouts and Study

A stopwatch (chronometer) measures elapsed time with start, stop, and lap/reset controls. It is useful for timing workouts, cooking, study sessions, presentations, and any activity where you need to track time precisely.

Stopwatch vs Timer

Stopwatch measures elapsed time from zero upward (you stop it when done). Timer (countdown) counts down from a set time to zero and alerts you. Use a stopwatch when you don't know the duration in advance. Use a timer when you do.

Lap Timing

Lap timing records split times without stopping the main timer. For example, in a 5km run: Lap 1 = 0-1km time, Lap 2 = 1-2km time, etc. This helps analyze performance across segments.

Use Cases

• Workouts - interval training, rest periods between sets
• Study - Pomodoro technique (25 min focus, 5 min break)
• Cooking - track multiple timers for different dishes
• Presentations - keep track of speaking time per section

Free Online Stopwatch

Use SnapSum Stopwatch - accurate to milliseconds, lap recording, start/stop/reset controls. Works entirely in your browser, no app download. 100% free.