ER (Engagement Rate)
ER (Engagement Rate) measures engagement as a percentage of total subscribers. It's calculated as reactions, comments, and forwards divided by the subscriber count. Unlike ERR, this metric includes inactive subscribers in the denominator.
Why it matters
ER helps identify channels with inflated subscriber counts. If a channel has 500K subscribers but ER below 0.1%, many subscribers may be bots or inactive accounts. ER is useful for comparing channels of similar size to spot which ones have a genuinely active audience.
How to use it
Use ER alongside ERR for a complete picture. An ER above 3% is excellent, 0.5-3% is average, below 0.5% may indicate audience quality issues. Large channels naturally have lower ER because not all subscribers see every post.
Example
See these metrics in action on real Telegram channels
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