Glossary
Engagement rate is the share of a creator’s audience that actively interacts with a post, usually calculated as likes, comments, shares and saves divided by followers or reach, and shown as a percentage.
Follower count tells a brand how many people could see your content. Engagement rate tells it how many people actually stopped and reacted, which is why it is one of the first numbers a brand asks for when it looks at your profile or media kit.
Brands use engagement rate alongside follower count to judge whether an audience is genuinely paying attention, since a large following with low engagement often signals inactive or purchased followers.
It also feeds into pricing and reporting. Cost per engagement (CPE) is built on the same interaction count, so a brand comparing two creators for a Reels campaign may look at your engagement before it looks at your rate card.
Both common formulas start with the same top line: total engagements on a post, meaning likes + comments + shares + saves. Some people also count replies, link clicks or profile visits, so write down which actions you included.
Example with made-up numbers: say your Instagram account has 20,000 followers. One Reel gets 900 likes, 60 comments, 40 shares and 200 saves, which adds up to 1,200 engagements.
Run it through both formulas and the same Reel gives two quite different answers. Neither is wrong; they answer different questions, so always say which one you used.
A figure a brand can check builds more trust than a high one it can’t. This page doesn’t give a “good” engagement rate to aim for, because the number shifts with platform, format, niche and formula. Your own trend over several months is a fairer yardstick.
A post can have high reach and low engagement, or the reverse. A brand paying on CPM cares about views; a brand paying on CPE cares about interactions.