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Facebook engagement rate calculator
Enter reactions, comments and shares for one post or a batch, with your followers or your reach. You get the engagement rate both ways, the split between reactions, comments and shares, and one dated benchmark for context. Or fill the numbers from a public Page.
How it works
1Add the interactions
Type reactions, comments, shares and, if you like, link clicks for the posts you are measuring, and say how many posts those totals cover.
2Add followers, reach or both
Followers give the rate most benchmarks use. Reach, from your Insights, gives the rate for the people who actually saw the posts.
3Or fill from a public Page
Optionally read a public Page’s followers and up to nine recent posts. The boxes fill in and stay editable.
Two rates, and why both are shown
Rate by followers is the average interactions per post divided by the Page’s followers. It is the version most published benchmarks use, so it is the one to compare with them. Rate by reach divides the interactions by the number of people who saw the posts, so it says how well a post held the attention of the people it reached.
The two can differ a lot. If a post reaches 3,000 people on a Page with 12,000 followers, the same 90 interactions are 0.75% by followers and 3% by reach. Neither is wrong; they answer different questions, and the page shows the sum for each so you can see which you are looking at.
Interactions here mean reactions, comments and shares. Link clicks are shown as a separate figure, because the benchmark below leaves them out and adding them would stop your rate being comparable.
The one benchmark, with its date and sample
Socialinsider’s “2026 Organic Facebook Engagement Benchmarks” (socialinsider.io/social-media-benchmarks/facebook), published on 23 March 2026, analysed 25 million Facebook posts from 130,683 business Pages published between January 2024 and December 2025. It puts the average engagement rate at 0.15%, flat on the year before. It calculates the rate as reactions plus comments plus shares on a Page’s posts, divided by the number of fans, which matches the followers formula here. The report was read on 7 October 2026.
| Post format | Average rate, 2025 |
|---|---|
| Status (text) | 0.20% |
| Album | 0.18% |
| Reel | 0.18% |
| Image | 0.15% |
| Link | 0.05% |
It is one company’s data on brand Pages, so read it as context rather than a target. The report notes that engagement fell across nearly every format in the second quarter of 2026. A tiny Page, a local shop or a personal brand may sit far from an average built mostly from other businesses.
Filling the numbers from a public Page
To measure a Page you don’t run, paste its link under “Fill from a public Facebook Page”. The tool reads the Page’s followers and up to nine recent posts, three at a time, and adds up their reactions and comments. Each read uses up to four of your free daily look-ups and Stop keeps what has arrived.
- The numbers are public and may be up to a day old, and Facebook rounds the follower count of large Pages.
- Shares are filled in only if Facebook sends them for every post read. Otherwise the box stays empty.
- Reach is never public, so the rate by reach needs your own Insights.
- Nine posts is a snapshot. One post that took off can lift an average well above what a normal post gets.
Nothing you type in the boxes leaves your browser. The fill sends only the Page link you give it.
Questions people ask
How do you calculate Facebook engagement rate?
Add reactions, comments and shares, then divide by your followers for the usual rate or by your reach for the rate among people who saw the post. 90 interactions on 12,000 followers is 0.75%.
What is a good Facebook engagement rate?
Socialinsider’s 2026 report of 25 million posts puts the average at 0.15% by followers. That is one study of brand Pages, so use it as context. Your own past posts are a better yardstick.
Should link clicks count as engagement?
Benchmarks such as Socialinsider’s count reactions, comments and shares only. This tool shows clicks separately so your main rate stays comparable.
Why can the rate by reach differ from the rate by followers?
They divide the same interactions by different numbers. When a post reaches fewer people than follow the Page, dividing by reach gives the bigger rate. If it reaches more people than you have followers, the order flips.
Does the Page fill work for private profiles?
No. It reads public Facebook Pages only, never personal profiles or groups, and it does not read who commented.
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