Watch Time Calculator
Views times average view duration, as total watch hours and percentage of the video watched.
Accepts mm:ss or seconds. Find it in YouTube Studio → Analytics → Engagement.
mm:ss or seconds.
Enter views, average view duration, and video length.
How it's computed: watch hours = views × average view duration ÷ 3,600. Share watched = average view duration ÷ video length × 100.
Same job, one API call
Runs in your browser — nothing is sent anywhere.
Questions
Where do I find average view duration?
YouTube Studio → Analytics → Engagement. The calculator needs views, video length, and average view duration from there.
How is watch time different from average view duration?
Average view duration is per-view seconds; watch time multiplies it across every view. One long session and many short ones can produce the same total hours.
Why show the percentage watched too?
Retention feeds recommendations more than raw views do. Two videos with equal watch hours but different retention perform differently, so the calculator shows both figures.
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