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Social Media

Engagement Rate Calculator

Work out your engagement rate the way brands do, from followers, likes and comments, and see the versions with saves, shares and reach. No login: just your numbers.

Add up your last 10 posts and divide by 10.

From Insights (accounts reached). Only you can see it.

Enter followers, likes and comments to calculate.

The engagement rate formula

Engagement rate = (likes + comments) ÷ followers × 100

Averaged over recent posts, usually the last 10 to 12.

This is the version brands, agencies and influencer platforms use when they assess a creator, because every number in it is public. Variations add saves and shares, which are stronger signals of interest but visible only to the account owner, or divide by reach instead of followers.

Example

Followers
12,500
Average likes + comments per post
480 + 36 = 516
516 ÷ 12,500 × 100
4.13%

Which version to use

VersionFormulaUse it for
By followers(likes + comments) ÷ followersMedia kits and brand pitches: anyone can verify it
Including saves and sharesall interactions ÷ followersYour own tracking: saves and shares predict reach
By reachall interactions ÷ accounts reachedJudging content quality: how the people who saw it reacted

Use one version consistently. Comparing a reach-based rate with someone else’s follower-based rate is meaningless.

What a good engagement rate is

There is no single number. Engagement rates fall as accounts grow, because larger audiences include more casual followers, and they vary by niche and format. Published benchmarks from analytics companies disagree with each other for the same reason. The useful comparisons are with accounts of a similar size in your niche, and with your own rate over the past few months.

Common mistakes

  • Measuring one viral post

    A single post that took off says little. Average the last 10 to 12 posts, or a month of posts, for a rate that reflects the account.

  • Mixing formulas

    A rate by reach is usually several times higher than a rate by followers. Say which one you are quoting, especially in a media kit.

  • Comparing across sizes

    A 9% rate on 2,000 followers and a 2% rate on 500,000 followers can both be healthy. Compare like with like.

Posting to Instagram? Get the image sizes right with the Instagram image resizer.

Guides

Frequently asked questions

How do you calculate engagement rate on Instagram?

Add the average likes and comments per post over your recent posts, divide by followers and multiply by 100. 516 interactions per post on 12,500 followers is a 4.13% engagement rate.

Should engagement rate use followers or reach?

Followers for anything you share with brands, because they can check it. Reach for your own analysis, because it measures how the people who actually saw a post reacted. Only the account owner can see reach.

What is a good engagement rate?

It depends on account size and niche: rates fall as accounts grow. Compare with similar-sized accounts in your niche and with your own past months rather than a single benchmark.

Do you need my Instagram login?

No. Type in your own numbers. Nothing is sent anywhere or stored.

Last reviewed 3 October 2026. This tool runs in your browser; nothing you enter is stored or sent to Boostlix.