PostEaseThe short answer
Social media engagement is what people do with a post besides seeing it: like, comment, share, save, click or reply. It is usually measured as an engagement rate, engagements divided by reach. In Buffer’s 2026 engagement report, covering over 52 million posts, the median post earned about 5.5% on Instagram, 5.6% on Facebook, 6.2% on LinkedIn and 2.5% on X, measured that way.
Not every reaction is worth the same. A share or a save costs a viewer more than a like, and it is what platforms say they weigh: Instagram names the likelihood of a reshare among its most important predictions for Reels. To earn more engagement, make posts worth passing on or coming back to, in the format that suits each platform.
Which formats earn engagement on each platform
Buffer measured the median engagement rate of each format on each platform, engagements divided by reach. The best format differs by platform, so a single plan for all of them leaves engagement on the table.
| Platform | Highest | Next | Lowest |
|---|---|---|---|
| Carousels 6.90% | Images 4.44% | Reels 3.31% | |
| Document carousels 21.77% | Video 7.35% | Text 3.18% | |
| Images 5.20% | Video 4.84% | Links 4.43% | |
| Threads | Video 5.55% | Images 4.55% | Links 2.34% |
| X | Text 3.56% | Images 3.40% | Links 2.25% |
| TikTok | Video 3.39% | Images 1.92% | |
| Video 5.75% | Images 3.15% |
Engagement and reach pull in different directions
The format that earns the most engagement is not always the one that reaches the most people. On Instagram, Buffer found Reels reached about 1.36 times as many people as carousels, while carousels earned roughly twice the engagement rate. Reels find new people; carousels engage the people you reach. A plan that uses both does more than either alone.
Engagement rate also tends to fall as reach grows, because a post shown to people who do not follow you yet is shown to people who care less, at first. A dip in rate during a month of strong reach is often a good sign, not a bad one. Look at engagements per post alongside the rate.
Which reactions count for most
Each reaction says something different, and the costlier ones say more.
- Shares and sends: the viewer put their name behind it. Instagram lists reshares among its most important Reels predictions.
- Saves: the viewer wants to come back to it, which marks useful, reference content.
- Comments: the viewer had something to say. Read them for ideas, and reply; a conversation keeps people on the post.
- Clicks: the viewer acted on the link, the closest engagement gets to a result.
- Likes: the cheapest reaction, useful in volume but weak on its own.
How to earn more engagement
Engagement follows from posts people value. A few habits that help:
- Teach something in steps, in the format each platform rewards: a carousel on Instagram, a document on LinkedIn.
- Make posts for one person to send to another: a tip they need, a joke about their work, a plan to share.
- End with a real question you want answered, not “thoughts?”.
- Reply to comments in the first hours, and keep replying while people are still there.
- Post on a steady schedule; Buffer’s 2026 frequency guide cites its analysis of more than 100,000 users finding that regular posting went with five times more engagement.
Engagement bait does not work
Asking people to “comment YES”, tag friends or like to vote is engagement bait: it chases the reaction without giving a reason for it. Meta has demoted engagement bait on Facebook since 2017, using “LIKE this if you’re an Aries!” as its example, and the reactions it earns do not lead to the shares and saves that matter. Earn engagement by making the post worth reacting to. Engagement pods, groups that agree to like and comment on each other’s posts, fail for the same reason: the reactions come from people who were never the audience, so they do not lead to the shares, saves and follows that matter.
How to measure engagement
Pick one formula, engagements divided by reach where the platform reports reach, and keep it. Work out your median per platform each month, compare each post with it, and look at what the posts above it share. Compare a platform with itself: platforms count different actions as engagement, so a LinkedIn rate and an Instagram rate are not like for like.
Questions
What is a good engagement rate in 2026?
One above your own median for that platform. As context, Buffer’s 2026 medians by reach run from about 2.5% on X to about 6.2% on LinkedIn.
Which post format gets the most engagement?
It depends on the platform. In Buffer’s 2026 data, carousels led on Instagram and LinkedIn, images on Facebook, video on Threads, TikTok and Pinterest, and text on X.
Why is my engagement rate dropping?
Often because reach is growing to people who do not follow you yet, who react less at first. Check engagements per post and reach alongside the rate before changing course.
Do comments or shares matter more?
Shares, usually. A share puts your post in front of new people and is what Instagram says it predicts for Reels; comments matter most when you reply and a conversation starts.
Sources
- Buffer, The state of social media engagement in 2026, March 2026.
- Buffer, How often to post on social media in 2026: a data-backed guide, January 2026.
- Instagram, Instagram ranking explained, May 2023.
- Meta, Fighting engagement bait on Facebook, December 2017.