Follower count is vanity; engagement rate is sanity. This free calculator takes your follower count plus average likes and comments per post, and returns your rate as (likes + comments) ÷ followers — the standard simple formula.
What counts as good? As a rough guide: above 5% is strong, 2–5% is solid, 1–2% is below average, and under 1% means most followers are not interacting. Smaller accounts naturally score higher; mega accounts rarely break 2%.
Important context: this is an estimate from the numbers you type in. It does not pull your analytics, weigh reach versus followers, or account for saves and shares — treat it as a quick health check, not a diagnosis.
If the number is lower than you would like, the fix is almost always the content mix and posting consistency, not a new trick. This tool is free forever and runs in your browser — no account needed.