Engagement rate tells you what portion of the people who saw your post then did something — liked it, commented, shared, saved or clicked. Add up those interactions, divide by reach and multiply by 100. So a post seen by 1,000 people with 45 interactions has a 4.5% engagement rate.
Total engagement and engagement rate are not the same. Total engagement is the raw number — 45 interactions. Engagement rate turns that into a percentage so you can fairly compare a post seen by 1,000 people with one seen by 100,000.
TL;DR: Divide interactions by reach, not by followers, and measure progress against your own 90-day average rather than comparing to a much larger brand.
Mydrop data, September 2026: across 7,945 posts on 336 accounts connected to Mydrop, the median engagement rate per post was 3.1% on Instagram, 3.0% on TikTok and 1.1% on Facebook. The middle half of Instagram posts ran between 1.1% and 6.7%, so a 2% post is normal and a 7% post is a good day. Method and full tables in the Mydrop social media benchmarks.
How to calculate engagement rate, step by step
- Count the interactions on one post. Include likes, comments, shares, saves and any link clicks the platform reports.
- Find the post’s reach. Reach means unique people, not views. Instagram and Facebook show it under post insights; TikTok calls it "reached audience", LinkedIn reports impressions (so use those), and YouTube gives you unique viewers.
- Do the maths: divide, then multiply by 100. For example, 250 interactions divided by 2,000 reach is 0.125, so 12.5%.
To get an account-level figure, calculate the rate for your last 30 posts and average those percentages. Don’t add all interactions and divide by total reach — one viral post will skew the result.
The three formulas, and when each one lies
There isn’t a single official formula. Three versions are common and each gives a different result.
| Formula | Divide interactions by | Best for |
|---|---|---|
| By reach (ERR) | Unique people who saw it | Judging the content itself |
| By followers (ERF) | Your follower count | Comparing your account to another |
| By impressions (ERI) | Total times it was shown | Paid campaigns and repeat exposure |
Take a post with 200 likes, 30 comments and 20 shares — 250 interactions. It reached 2,000 unique accounts, was shown 3,000 times, and the account has 5,000 followers:
- By reach: 250 / 2,000 = 12.5%
- By followers: 250 / 5,000 = 5%
- By impressions: 250 / 3,000 = 8.3%
Same post, three valid numbers. That’s why the formula matters more than the raw value. Pick one, write it down and stick to it for a quarter. Most teams should use reach, because it answers the question you actually have: of the people who saw this, how many cared?
Reach and impressions aren’t the same either. If that’s fuzzy, reach vs impressions is worth five minutes.
What is a good engagement rate?
The quick, reach-based guide across most platforms:
| Status | Engagement rate |
|---|---|
| Low | Under 1% |
| Average | 1% to 3.5% |
| Good | 3.5% to 6% |
| High | Above 6% |
Those bands change by platform. TikTok tends to run about double; X tends to sit lower.
| Platform | Typical | Strong |
|---|---|---|
| TikTok | 3% to 9% | Above 10% |
| 1% to 5% | Above 5% | |
| 1% to 3% | Above 3% | |
| 0.5% to 2% | Above 2% | |
| X | 0.2% to 1% | Above 1% |
Two factors matter more than the platform.
Audience size. Under 5,000 followers, many people will know you, so 4% to 6% is normal. Past 100,000, the same content often lands below 1%. A falling rate on a growing account is often just arithmetic.
Industry. Fashion, food and fitness usually top the tables. B2B and SaaS sit lower, where a 1.2% rate with thoughtful comments beats a 4% rate made up mostly of likes.
Use the table as a sanity check, then forget it. Your real benchmark is your own last 90 days.
What a move in the number actually means
If it goes up, check reach before you celebrate. A higher rate with steady reach means the content itself improved. A higher rate with falling reach usually means the post is only reaching loyal followers — that’s a warning, not a win.
If it drops, look for these five causes, in the order we usually see them:
- Reach grew. The post hit colder audiences. Interactions rose but the percentage fell. Nothing’s broken.
- You started posting more. The same audience split across more posts, so per-post rate drops. Volume is the most common self-inflicted cause.
- Format drifted. You swapped video or carousels for static images because they were quicker to produce.
- The first line got lazy. Announcements and weak openers get skimmed before anyone interacts.
- Nobody replied. Leaving comments unanswered teaches people not to bother next time.
If the slide has run for a quarter, how to fix a falling engagement rate walks through the diagnosis.
Five changes that raise it
Ordered by how quickly they pay off:
- Reply within the hour. Each reply counts as an interaction and brings the commenter back. It’s the fastest lever.
- Cut posting volume before you add anything. Three strong posts a week usually beat seven average ones for total interactions.
- Open with a number or a claim. "We cut client reporting from six hours to 40 minutes" outperforms "We're excited to share".
- Ask one genuine question per post, answerable in five words. Engagement-bait is suppressed now; a real question works.
- Test format before timing. Format matters most, timing least. Give two neglected formats four posts each and keep the winner.
The full list, with the tests behind it, is in how to increase social media engagement.
Track it without doing the math every week
Native analytics give you the raw numbers per platform, and many teams rebuild the same spreadsheet every Monday. That’s where most people quietly stop measuring.
Mydrop calculates engagement rate per post and per profile across all nine connected platforms, keeps a daily time series so you see trends not snapshots, and benchmarks profiles against each other if you manage several brands. Performance analytics does the sorting, and white-label reports send the client version on a schedule.
Your next step: pull your last 90 days and sort posts by engagement rate, not likes. The top five almost always reshuffle, and the pattern in them becomes your content plan for next quarter. You can start free.
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