Guide
Influencer Selection
Brands
Engagement rate is the share of an influencer's followers or actual reach who like, comment, share or save a post: (likes + comments + shares + saves) ÷ followers (or reach) × 100. There's no single "good" number — public benchmark reports disagree by a factor of up to 10 depending on platform, account type and measurement method — so compare a profile against others in the same tier, niche and platform instead.
Engagement rate is the share of an influencer's followers (or actual reach) who actively react to a post — by liking, commenting, sharing or saving it. It tells you something follower count alone can't: whether the audience you'd be paying to reach is actually listening, or just a number on a profile.
Two profiles with the same follower count can have very different real reach. A profile with 50,000 followers and 1% engagement reaches fewer genuinely engaged people than one with 15,000 followers and 6% engagement — even though the first looks bigger on paper.
The most common formula:
Engagement rate (follower-based) = (likes + comments + shares + saves) ÷ followers × 100
Some tools and agencies count only likes and comments; others include shares and saves. There's no binding industry standard for which actions count — so before comparing a number from one source with a number from another, check they're using the same definition, or you're not actually comparing the same thing.
The formula above uses total follower count as the denominator. An alternative uses reach — the actual number of people who saw the post — instead:
Engagement rate (reach-based) = (likes + comments + shares + saves) ÷ reach × 100
Reach-based engagement rate is often the more honest number, because the platform's algorithm rarely shows a post to every follower. It can come out higher or lower than the follower-based version: higher if the post reached fewer people than the total follower count, lower if it reached beyond the regular follower base — for example through a Reels recommendation. Ask for reach figures where you can; most creators can pull them directly from their own insights.
The numbers below are hypothetical and illustrate only how the formula works. This is not a real Make Influence customer case, and it is not a benchmark for what counts as "good".
A nano influencer has 8,400 followers. One post gets 312 likes, 41 comments, 9 shares and 18 saves:
One post alone doesn't say much. Here's the same profile's five posts over a week (8,400 followers throughout):
| Post | Total interactions | Engagement rate |
|---|---|---|
| 1 | 380 | 4.52% |
| 2 | 410 | 4.88% |
| 3 | 295 | 3.51% |
| 4 | 522 | 6.21% |
| 5 | 401 | 4.77% |
Average engagement rate across the five posts = (380 + 410 + 295 + 522 + 401) ÷ 5 ÷ 8,400 × 100 = 2,008 ÷ 5 ÷ 8,400 × 100 = 4.78%.
Always use an average across several posts rather than a single number — one viral post or one bad day skews a one-post snapshot heavily in either direction.
Treat any source that hands you one precise "good" number without naming a platform, niche and measurement method with scepticism. Public benchmark reports disagree with each other by a factor of up to 10, because they measure different things: brand accounts rather than influencer accounts, all posts rather than organic-only, follower-based rather than reach-based.
Two named, methodologically transparent reports illustrate the spread:
| Source | What it measures | Reported figure (2026) |
|---|---|---|
| Rival IQ, Social Media Industry Benchmark Report | ~2,100 brand accounts across 14 industries, Instagram, all posts | 0.30% median engagement on Instagram (follower-based) |
| Socialinsider, Social Media Benchmarks | ~70 million posts across Instagram, TikTok, Facebook and X | 0.48% average on Instagram, 3.70–3.85% on TikTok |
Both figures are from 2026, both are methodologically transparent — and they still aren't directly comparable, because they sample different accounts and count differently. Neither measures influencer accounts specifically; they measure brand accounts, which typically post more commercially and often engage lower than an influencer with a personal relationship to their followers. Use them as direction, not as the last word in your next influencer conversation.
The most consistent, well-supported pattern across sources isn't a single number — it's a direction: engagement rate typically falls as follower count rises. See nano, micro, macro or mega influencers for how the four tiers differ on exactly this point.
Engagement rate is useful, but it doesn't prove authenticity on its own. An inflated follower base can easily carry a high engagement rate too, if the comments and likes were bought along with the followers. See the concrete signals that expose that in how to spot fake followers.
Use engagement rate as one filter among several instead:
See the full selection process, where engagement rate is one filter among several, in how to choose the right influencers. Engagement rate is also a proxy for how relevant — not just how large — a profile's audience is; see reach vs relevance for why that distinction matters more than follower count.
A high engagement rate means followers are reacting to the content. It isn't the same as them buying. An influencer can have an engaged, loyal audience that loves the content and never clicks through to a purchase. Treat engagement rate as a quality filter during selection — not as a tracked result. Actual sales need to be measured separately, with links, codes and UTMs; see how to track influencer marketing performance. If you're pricing or negotiating on the back of engagement, see CPM, CPE and CPA in influencer marketing for how cost per engagement compares to cost per impression and cost per acquisition.
Engagement rate is also just one KPI among several a campaign might be judged on — which one should carry the most weight depends on the campaign's objective. See influencer campaign KPIs by objective for the full breakdown across awareness, consideration and sales.
In Make Influence's experience, the most common mistake is using engagement rate as the sole decision criterion — either rejecting a profile because the number sits below a "good" figure pulled from a random blog, or picking a profile purely because the number is high. A high number on a small, tightly niche profile is expected and doesn't on its own say whether the product fits that audience. We use engagement rate as one filter among several in selection — alongside audience data and, once a profile has run a previous campaign, its actual click and sales history, which in practice is the strongest signal we have.
There's no single reliable number we can give you — too much depends on platform, niche and measurement method. Instead, compare the profile against other nano profiles in the same niche and platform, and look at the trend across several posts rather than one number.
Reach-based is often more representative, because it reflects how many people actually saw the post. Follower-based is easier to calculate yourself, because the follower count is always public. Ask for reach figures where possible, and use follower-based as a conservative fallback otherwise.
No. Bought comments and likes can inflate the number just as bought followers can deflate it. Always combine engagement rate with actually reading the comments — see how to spot fake followers.
Because the reports measure different things: different account types (brand vs influencer), different denominators (followers vs reach), and different actions counted (likes and comments only, or also shares and saves). Only compare figures that use the same definition.
Not directly. It's a quality signal for whether the audience is engaged and real — not a measure of conversion. Sales need to be tracked separately; see how to track influencer marketing performance.
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