Engagement rate calculator — all 6 platforms

The formula, with an example

Engagement rate by followers is (average likes + average comments) ÷ followers × 100. An account with 10,000 followers whose posts average 400 likes and 20 comments works out as (400 + 20) ÷ 10,000 × 100 = 4.20%.

Take both averages from the same posts

The two averages have to describe the same posts, or the same period. For example, add up the likes on your last 10 posts and divide by 10, then do the same for the comments on those 10 posts. Likes from one set of posts and comments from another give a number that describes neither, and one viral post is not an average.

What the rate measures, and what it doesn't

It divides by followers, so it is a rate by followers: an average post's likes and comments as a share of the account's followers. It is not a rate by views, reach or impressions, which divide by the post's views, reach or impressions instead, and it doesn't count people. Someone who likes and comments counts twice, and likes and comments from people who don't follow the account count too, so the result can be higher than 100%. The calculator shows it as it is, without a cap.

Tools and platforms also define engagement rate differently: some add shares and saves, some divide by reach. Compare a number only with numbers worked out the same way, such as your own from earlier posts. This calculator doesn't grade the result or compare it with platform averages.