Video completion rate
Video completion rate is the percentage of video starts in which the viewer watches to the end, or close to it. If 1,000 people start a video and 400 finish it, the completion rate is 40 percent. Analytics tools usually count a view as complete at 90 or 95 percent of the length, because many viewers skip end credits.
Why it matters
Completion rate shows whether content delivers on its promise. For online courses, low completion means students are not getting what they paid for. For advertisers, completed ad views are often what they pay for, so completion directly affects revenue.
How it works
- Each view records how far the viewer got in the video, often as the farthest point reached.
- A view counts as complete when it passes a set threshold, such as 90 or 95 percent.
- Completed views are divided by total video starts to give the completion rate.
- Plotting where incomplete views stop shows which moments lose viewers.
What is a good video completion rate?
A good completion rate depends mostly on video length. Short clips under a minute often see high completion, while long videos naturally see lower rates. For example, 40 percent completion may be strong for a 30 minute lesson but weak for a 20 second ad. Compare each video with others of similar length and type rather than one fixed target.
How do you calculate video completion rate?
Divide the number of completed views by the number of video starts, then multiply by 100. For example, if 1,000 viewers start a video and 400 reach the completion point, the completion rate is 40 percent. Decide upfront what counts as complete, such as 90 or 95 percent of the length, so end credits do not drag the number down.
Completion rate vs watch time: which matters more?
Neither is enough alone, so most teams track both. Completion rate shows whether viewers finish, which matters for lessons, ads and episodes with a payoff at the end. Watch time shows total attention, which matters for revenue and recommendations. A long video can have lower completion but far more watch time than a short one.
Where it's used
Online learning platforms track completion to see where courses lose students, and ad-supported services report completed ad views to advertisers to show their ads were seen in full.
