Instagram Insights terms you need
Instagram reports the numbers this calculator uses in Insights; the definitions below follow Meta’s help page for Instagram insights.[1]
| Metric | Meaning | Use |
|---|---|---|
| Views | Times your content was played or displayed | Impression-style denominator |
| Viewers / accounts reached | Unique accounts that saw your content at least once | Best denominator for one post |
| Interactions | Actions such as likes, comments, saves and shares | The numerator |
| Accounts engaged | Unique accounts that interacted with your content | Gives a per-person rate |
| Followers | Accounts following you on the day you measure | Best denominator for comparing accounts |
Instagram’s interaction total already adds likes, comments, saves and shares, so you can enter it as likes and leave the rest blank. Shares and saves are often the most telling signals because they take more effort than a like.
How to calculate Instagram engagement rate
- Per-post rate by reach2.88%
- Interactions per post533.3
- Comments share4.3%
- In Insights, pick the posts and the date range.
- Note each post’s interactions and accounts reached (or your follower count).
- Add up the interactions, count the posts and average the reach.
- Enter them above; switch “Divide by” to compare follower- and reach-based rates.
Reels, carousels and single images
Reels tend to reach many non-followers, so their rate by followers looks high while their rate by reach can be lower. Carousels often earn more saves. Compare formats by reach, and accounts by followers. Accounts reached counts unique accounts, while views count every display,[2][3] so a Reel watched twice by the same person adds a view but not reach.
For other networks, the general engagement rate calculator handles followers, reach or impressions; for brand collaborations, pair engagement with a cost-equivalent from earned media value.
Instagram mistakes
- Using today’s followers for last year’s posts. Follower count changes; for old posts, reach is the fairer denominator.
- Mixing paid and organic. Boosted posts add paid reach and interactions. Filter them out or label them.
- Undisclosed partnerships. The FTC expects creators to disclose a brand relationship with the endorsement itself.[4] Use Instagram’s paid-partnership label or a clear disclosure.
To see whether engagement turns into visits and sales, track link clicks with the CTR calculator.
Not affiliated with Instagram or Meta. Platform names are trademarks of their owners and appear only to identify whose documentation we cite.
Frequently asked questions
How do you calculate Instagram engagement rate?
(Likes + comments + shares + saves) ÷ followers × 100 for a post; for several posts, divide total interactions by the number of posts first.
Should I use reach or followers on Instagram?
Reach to judge content, followers to compare accounts. Reels in particular reach beyond followers, so the two rates differ a lot.
Do saves and shares count as engagement on Instagram?
Yes. Instagram’s own interactions metric includes likes, comments, saves and shares.
Where do I find accounts reached?
In Instagram Insights for each post or for the account over a date range.