Video Retention Metrics Calculator
Calculate completion rate and average watch time from consistent video analytics.
Your numbers
Example values are prefilled. Use the same reporting period for all inputs.
Completion rate
35%
Average watch time (seconds)
18
Average share of length watched
60%
The formula
Completion rate = Completed views / Starts × 100; Average watch time = Watch minutes × 60 / Starts; Average watched share = Average seconds / Video length × 100.
Worked example
10,000 starts, 3,500 completions, and 3,000 watch minutes on a 30-second video give 35% completion, 18 seconds average watch time, and 60% average watched share.
Frequently asked
Can average watched share exceed 100%?
Yes, if watch time includes repeats or loops while starts use a different counting rule. Use metrics with consistent definitions and the same reporting period.