ERR and engagement rate calculator for Telegram
free · no sign-up
ERR shows what share of subscribers sees a post; ER shows how many of those who saw it reacted. Enter subscribers, average views and reactions — the calculator gives both numbers and shows how they are made. Take the channel numbers from its stats or from our link checker.
Enter subscribers and views
How to use it
- step 1
Subscribers and views
Use the average views of the last 10–20 posts, skipping the newest: a post gets most of its reach in the first day.
- step 2
Reactions, comments, forwards
Averages per post. If something is missing, leave zero.
- step 3
Compare like with like
Compare a channel with itself a month ago, or with channels of the same niche and size — small and large channels have different ERR by nature.
How it’s calculated
ERR — reach
ERR = average post views ÷ subscribers × 100%. A channel with 10,000 subscribers and 1,500 average views has an ERR of 15%.
ER by views
ER = (reactions + comments + forwards) ÷ views × 100%. How much a post engages those who saw it.
ER by subscribers
The same actions divided by subscribers. Handy for comparing channels with different ERR: it combines reach and engagement.
Why ERR drops as a channel grows
New subscribers come from ads and lists and read less often than the first ones. Not necessarily bad: watch absolute views and how ERR changes over time.
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FAQ
What is ERR in Telegram?
Engagement rate by reach — the share of subscribers who see a typical post: average views ÷ subscribers × 100%.
How is ERR different from ER?
ERR is about reach (how many saw it), ER is about response (how many of them did something). High ERR with low ER means people read but don’t engage.
What is a good ERR?
There is no universal benchmark: it depends on niche, size and age. Compare a channel with itself over time and with similar channels — you can check them by link on the next page.
Where do I get average views?
From the channel stats if you are an admin, or from our link checker — it calculates average and median views of recent posts.