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Stopwatch

Online stopwatch with start, pause, lap and reset. Millisecond precision.

00:00:00.00
LapsTimeSingle circle

Instructions

How to Use

  • Click start to begin timing

  • Click lap to record split times

  • Pause / resume / reset

  • Accurate to milliseconds

    • ❓ FAQ

    What is the precision?

    It is accurate to the millisecond.

    Can it record laps?

    Yes, it supports laps and shows the time of each lap.

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    How to Operate an Online Stopwatch for Accurate Timing

    This article breaks the complete operation process of using an online stopwatch into executable steps, explains the difference between lap and stop, the sources of error on mobile and web versions, and gives specific methods to reduce timing deviation, helping you get more reliable readings in classrooms, experiments, sports, and other scenarios.

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