Guide
Real precision, how laps work, interpreting times: the answers to get the most from an online stopwatch without going wrong.
A stopwatch measures real execution and reveals pace variations. Beyond the raw time, it's the comparison between segments and between sessions that turns a measurement into useful information.
To the hundredth of a second while the tab is active. For long measurements, keep the page in the foreground since browsers throttle background tabs.
Compare the median and the spread, not just the best run: consistency is a more reliable signal than a one-off record.
As soon as you analyse effort segments, yes. Laps reveal where the pace drops — something the total time doesn't show.
An outlier is usually contextual. Basing a decision on it skews the analysis; rely on the dominant trend.
Every 1 to 2 weeks depending on your session volume — enough time to gather comparable measurements.