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Glossary

Engagement rate

How much an audience interacts with an account's posts, usually likes plus comments per post, divided by followers.

Last updated October 29, 2026.

What Engagement rate means

Engagement rate measures how much of an audience responds to what an account posts. The most common public formula is engagement by followers: the average likes plus comments per post, divided by the follower count. Some versions add shares and saves where a network shows them.

Account owners can also calculate it by reach or impressions, dividing by how many people actually saw a post. Those figures appear only in the owner's own dashboard, so anyone measuring an account from the outside, such as a brand vetting a creator, uses followers.

The rate falls as accounts grow, so it is meaningful only next to accounts of similar size in the same niche. A follower count that jumps without a matching rise in likes and comments is a common sign of bought followers.

How to calculate engagement rate

MethodFormulaWho can calculate it
By followers(average likes + average comments per post) ÷ followersAnyone, from public counts
By reachinteractions on a post ÷ accounts that saw itThe account owner
By impressionsinteractions on a post ÷ times it was shownThe account owner

How it appears in a response

GET /v1/tiktok/video?video_id=6718335390845095173 · video.likes_count

35200
A TikTok post's likes; the same response has views, comments, shares, saves, and the author's followers. From a recorded TikTok API response.

Common questions

Should I include pinned posts?

No. Pinned posts sit at the top of a profile and are often old, with years of likes. Average the newest posts by date.

What if an account hides likes?

Instagram lets authors hide like counts. Leave those posts out of the average instead of counting them as zero.

Keep reading

APIs that return it

  • Instagram API
  • TikTok API

Guides

  • Instagram engagement rate
  • Influencer campaign tracking

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    Search and local
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