yCalculator

Stopwatch Lap Time Calculator

Last updated: April 2026

Main Timer

00:00:00.000

Status: Ready

Lap Times

Start the stopwatch and press Lap to record split times.

What is a stopwatch?

A stopwatch measures elapsed time from the moment you press start until you pause, stop or reset it. It is useful when you need precise timing in hours, minutes, seconds and milliseconds.

How lap timing works

Lap timing records a split without stopping the main timer. Each lap shows the time since the previous lap and the cumulative elapsed time since the stopwatch started.

Use cases: sport, study, productivity

Stopwatches are used for sports drills, interval training, study sessions, productivity sprints, experiments, cooking, presentations and any task where elapsed time matters.

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