About the Engagement Rate
Engagement rate measures how actively an audience interacts with a piece of content, expressed as a percentage. It converts raw counts — likes, comments, shares — into a number you can compare across posts, accounts, or time periods regardless of how many followers each one has.
The standard formula
The most common definition is:
Engagement Rate = Total Engagements ÷ Followers × 100
where Total Engagements is the sum of likes, comments, and shares (and saves, if your platform tracks them) on a single post. This is the "by followers" or "by audience" engagement rate, and it is the version most often cited when comparing accounts.
Engagement rate by reach or impressions
A second common variant swaps the denominator: Engagement Rate = Total Engagements ÷ Reach × 100, where reach (or impressions) is the number of accounts that actually saw the post. Because reach is usually smaller than total follower count, the reach-based rate is typically higher, and it answers a different question — not "what share of my audience engaged" but "how compelling was this post to the people who actually saw it."
Reading the result
There is no universal official cutoff for what counts as "good," but a widely used rule of thumb bands the follower-based rate as roughly: under 1% low, 1%–3.5% average, 3.5%–6% good, and above 6% excellent. Actual typical rates vary a lot by platform, content type, and follower-count tier (smaller accounts often post higher rates than very large ones), so treat these bands as a rough reference point rather than a fixed target.
How to get accurate results
- Use engagement counts from a single post (or the average of several posts) — do not mix per-post totals with account-wide totals.
- Decide up front whether you are measuring against followers or against reach/impressions; the two answer different questions and are not interchangeable.
- Leave the reach field blank or at 0 if you do not have that number — the calculator will still give you the follower-based rate.