Engagement rate formulas
By followers: add the likes, comments, shares, and saves on a set of posts, divide by the number of posts, then divide by your follower count and multiply by 100. This is the most common version, and it is what brands usually mean on Instagram.
By views or reach: divide the total interactions by the total views or reach on the same posts and multiply by 100. This is better for TikTok, Reels, and Shorts, where most viewers do not follow you, so a follower-based rate can look too high or too low.
Views count every play, including repeats. Reach counts each account once. They give different answers, so note which one you used and keep using it.
Choose the posts carefully
- Use a fixed set. The last 10 to 12 regular posts is a common choice. Write down the date range.
- Keep formats apart. Carousels, Reels, Stories, and long videos behave differently. Calculate them separately rather than mixing them.
- Leave out unusual posts. Giveaways, paid boosts, and one-off viral posts lift the average and will not repeat. If you include them, say so.
- Wait a few days. A post published yesterday has not finished collecting interactions. Totals from posts that are at least a week old are more comparable.
Why there is no “good engagement rate” here
Published averages use different formulas, different post types, and different samples of accounts, so a figure from one report cannot be compared with a number from this calculator. Rates also tend to vary with account size and niche, which makes a single cut-off misleading. The most useful comparison is with yourself: run the same calculation on last quarter’s posts and see which way it moved.
Using engagement rate with brands
If a brand asks for your engagement rate, give the formula, the number of posts, and the date range along with the figure. Many brands calculate their own, so showing your method avoids confusion. Engagement shows how actively people respond. It does not set a price on its own, so build the fee from the work involved with the sponsorship quote builder, and see how follower count and engagement feed a scenario in the Instagram influencer earnings calculator.
Where to find your numbers
Instagram, TikTok, YouTube, and Facebook each show likes, comments, shares, and views per post in their analytics or insights screens for professional and creator accounts. Saves and reach are usually shown only to the account owner. If likes are hidden on an account, only the owner can see the real count.