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Video Watch Time Retention Calculator

Find what percentage of a video's length viewers watch on average.

Inputs

Saved Scenarios

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Audience Retention

60.00%

Spark says

How it's calculated

Formula

Retention%=Average Watch TimeVideo Length×100Retention\% = \dfrac{Average\ Watch\ Time}{Video\ Length} \times 100
Average\ Watch\ Time
— Average view duration across all viewers

What is the Video Watch Time Retention Calculator?

Audience retention shows what fraction of a video's total length the average viewer sticks around for — a key signal platforms use to judge content quality and decide how widely to recommend it.

How to use it

  1. 1 Enter the average watch time (from your platform's analytics).
  2. 2 Enter the total video length.

Worked examples

180s avg watch on a 300s video

60% audience retention.

Try it

Frequently asked questions

What's a good retention rate?

It varies by platform and video length — shorter videos tend to have higher percentage retention, while longer videos naturally see more drop-off; comparing your own videos against each other is often more useful than chasing a universal benchmark.