Cronómetro preciso con tiempos de vuelta y temporizador personalizable.
Nuestro cronómetro es preciso al milisegundo. Prueba nuestro Calculadora de Duración.
Combínalo con el Temporizador Pomodoro.
Precisión al milisegundo.
Sí, haz clic en Vuelta.
Sí, alerta visual y sonora al llegar a cero.
Millisecond-accurate stopwatch with lap time recording.
Set custom countdown timers for any duration.
Record and review split times and lap intervals.
Free online stopwatch and countdown timer with millisecond precision. Record lap times, set custom countdowns, and time anything with our easy-to-use tool. Works on any device — no installation needed.
Our stopwatch is accurate to milliseconds using your browser's high-resolution timer API.
Yes! Click the Lap button during timing to record split times. All laps are displayed with individual and cumulative times.
Yes, you'll hear an audio alert when the countdown reaches zero. Works even when the browser tab is in the background.
Last updated: February 12, 2026