In depth
Engagement rate is the standard cross-platform metric for audience quality. It expresses, as a percentage, how many people in a creator's audience actively interact with their content rather than passively scrolling past it.
Brands and agencies treat engagement rate as a stronger predictor of campaign performance than raw follower count. A 50,000-follower creator with 8% ER often outperforms a 500,000-follower account at 0.8% ER for niche brand deals.
Different platforms compute ER differently. Instagram and TikTok typically use likes + comments + saves + shares per post, divided by followers. YouTube tends to look at engaged-view rate (likes + comments per view).
What affects Engagement Rate
- Audience quality — bot or purchased followers dilute ER.
- Niche — beauty and fitness average higher ER than news or finance.
- Posting cadence — over-posting fatigues followers and lowers ER.
- Format — Reels and TikToks generate higher ER than static feed posts.
- Algorithm reach — broader reach often lowers % ER but raises absolute engagement.
Worked example
An Instagram account with 80,000 followers and an average post receiving 2,400 likes, 180 comments, 90 saves, and 30 shares has an ER of (2,700 ÷ 80,000) × 100 = 3.4%, which is above the 1–3% Instagram benchmark.