The two engagement rate formulas
“Engagement rate” is one name for two different measurements, and mixing them up is the most common way creators mis-quote their own numbers. Both start the same way: add up the average interactions a post gets — likes, comments, shares, and saves where the platform has them. Then you divide by one of two audiences:
ER = (likes + comments + shares + saves) ÷ followers × 100
By reach or views (what actually measures content):
ER = (likes + comments + shares + saves) ÷ views × 100
The follower-based version is the industry convention because follower counts are public — an agency can compute it for any account without access to its analytics. But it has a built-in distortion: it punishes you for every inactive follower and rewards accounts whose posts happen to go viral beyond their audience. The reach-based version divides by the people who actually saw the post, so it isolates how compelling the content itself was. The honest position is that reach-based is truer, but follower-based is the lingua franca — media kits, influencer marketplaces and most published benchmarks all quote by followers. This calculator does both; use the toggle.
Benchmarks by platform (2025–26 data)
These are the tables the verdict above is graded against. They are assembled from published industry studies — chiefly Rival IQ's 2025 Social Media Industry Benchmark Report, Socialinsider's benchmark data, and platform-specific analyses linked below. Ranges are follower-based unless marked otherwise, and they fall as account size rises — that inverse effect is real on every platform, not an Instagram quirk.
Instagram (follower-based)
The brand-account median is startlingly low: Rival IQ measured 0.36% across industries in 2025, and Socialinsider's analysis of 31 million posts put the all-format average around 0.45–0.50%, with Reels the best-performing format at about 1.23%. Creator accounts run far above brand accounts — nano-influencers average roughly 2.5–6% depending on the study.
| Account size | Below average | Average | Good | Excellent |
|---|---|---|---|---|
| Under 10K | < 1.5% | 1.5–4% | 4–7% | > 7% |
| 10K–100K | < 1% | 1–3% | 3–5% | > 5% |
| 100K–1M | < 0.6% | 0.6–1.5% | 1.5–3% | > 3% |
| Over 1M | < 0.4% | 0.4–1% | 1–2% | > 2% |
TikTok
TikTok's rates are in a different league — the platform surfaces content to non-followers by default, and its audience interacts constantly. Socialinsider measured a platform-wide 4.2% engagement rate by views in 2025, up 9% year over year. By follower count, 2025 data shows accounts under 100K followers averaging about 7.5%, falling to 2.88% for accounts over 10 million.
| Account size (follower-based) | Below average | Average | Good | Excellent |
|---|---|---|---|---|
| Under 100K | < 4% | 4–9% | 9–15% | > 15% |
| 100K–500K | < 3% | 3–6% | 6–10% | > 10% |
| 500K–5M | < 2% | 2–5% | 5–8% | > 8% |
| Over 5M | < 1.5% | 1.5–4% | 4–7% | > 7% |
By views, the tool grades TikTok as: below 2% below average · 2–5% average (the 4.2% platform mean sits here) · 5–9% good · above 9% excellent.
YouTube (view-based)
YouTube engagement is conventionally measured per view, not per subscriber, because views routinely exceed subscriber counts. The commonly cited average is about 2% of viewers liking, commenting or sharing, with 3–7% considered good to very good. A 2026 analysis of 1.46 million channels found a median long-form rate of 3.67%, nano channels (1K–10K subscribers) engaging at 5.23% per view versus 2.12% for 100K–500K channels, and Shorts drawing roughly 1.4× the per-view engagement of long-form.
| Measure | Below average | Average | Good | Excellent |
|---|---|---|---|---|
| Per view (standard) | < 1.5% | 1.5–3.5% | 3.5–7% | > 7% |
| Per subscriber (rule of thumb) | < 0.5% | 0.5–2% | 2–5% | > 5% |
X / Twitter
X is the outlier at the bottom. Rival IQ's benchmark tracked brand engagement falling 48% year over year, from 0.029% in 2024 to 0.015% of followers in 2025. Post-level rates for active creators run higher than the brand median, but even a fraction of one percent of followers interacting is normal here — which is why per-impression measurement (available in X analytics) is far more informative on this platform.
| Measure | Below average | Average | Good | Excellent |
|---|---|---|---|---|
| Per follower | < 0.01% | 0.01–0.05% | 0.05–0.2% | > 0.2% |
| Per impression (rule of thumb) | < 0.5% | 0.5–1.5% | 1.5–3% | > 3% |
Rows marked “rule of thumb” (and Instagram's reach-based grading) are practitioner heuristics — no major study publishes reach-based distributions for those platforms, so treat those verdicts as orientation, not gospel.
Why the platforms differ so much
The spread — 0.015% on X to 7%+ on TikTok — is not about audience quality; it is about distribution mechanics. TikTok and YouTube Shorts push content to non-followers through recommendation feeds, so the people who see a post are pre-selected for interest, and the interaction surface (like, comment, share, save) is thumb-distance away on every video. Instagram sits in the middle: follower-first distribution, but Reels and the Explore page add recommendation reach, and saves/shares give engaged users more ways to count. X shows posts in fast-scrolling text feeds where the dominant behaviour is reading, not reacting — impressions are enormous relative to interactions, and follower-based math makes the rate look microscopic. Comparing your Instagram rate to a TikTok benchmark, or vice versa, is meaningless; compare within platform and within size tier.
The follower-size effect, and which interactions matter where
On every platform, engagement rate falls as followings grow. A 5,000-follower account is mostly friends, fans and peers who see and touch every post; a 5,000,000-follower account carries years of inactive followers, drive-by follows and audience drift, and the algorithm shows each post to a smaller fraction of them. That is why this calculator grades against your size band rather than one flat number — a 2% rate is mediocre for a nano account and genuinely elite for a million-follower one.
The components are not interchangeable either:
- Saves matter most on Instagram. A save means “I want this again” — the strongest value signal Instagram's ranking system gets, and invisible to outsiders, which is why third-party estimates of your rate run low.
- Shares matter most on TikTok. A share puts your video in front of someone new, and the algorithm treats it as the premium signal for further distribution.
- Comments beat likes everywhere. They cost the viewer more effort, and brands read them for sentiment and authenticity — 50 real comments outweigh 500 drive-by likes in a vetting call.
- On X, reposts are the distribution event. Likes are private-ish approval; a repost is reach.
Worked example 1 — Instagram micro-creator
A creator with 25,000 followers averages 900 likes, 40 comments, 25 shares and 60 saves per post, with an average reach of 12,000 accounts.
By followers: 1,025 ÷ 25,000 × 100 = 4.10%
By reach: 1,025 ÷ 12,000 × 100 = 8.54%
Against the 10K–100K Instagram band, 4.10% by followers is a Good rate — comfortably above the 1–3% average band and roughly ten times the brand-account median. The reach-based 8.54% tells the more useful private story: of the people who actually saw a post, about one in twelve interacted. In a media kit this creator quotes 4.1%; internally, the 8.54% is the number to track month over month.
Worked example 2 — same TikTok account, two verdicts
A TikTok account with 80,000 followers averages 45,000 views per video, with 3,800 likes, 150 comments, 420 shares and 260 saves.
By views: 4,630 ÷ 45,000 × 100 = 10.29%
By followers: 4,630 ÷ 80,000 × 100 = 5.79%
Same account, same posts — two different verdicts. By views, 10.29% is Excellent: nearly two and a half times TikTok's 4.2% platform average. By followers, 5.79% lands in the Average band for a sub-100K account, because this account's videos reach fewer people than it has followers. Neither number is wrong; they answer different questions. The content is excellent (views frame); the distribution to its own audience is ordinary (followers frame). Knowing which frame a brand is using before you negotiate is worth real money.
What brands actually vet
Engagement rate is the screening filter, not the decision. Once your rate clears the bar for your tier, sponsors and agencies typically look at: comment quality (real sentences from real people, not emoji walls and “nice pic” bots); consistency across the last 10–20 posts rather than one viral spike; audience fit — demographics and geography matching their market matter more than raw rate; and rate-versus-size sanity, because a 100K account with a 15% Instagram rate reads as purchased engagement, not stardom. If you are pitching, screenshot your native analytics (reach, saves, audience breakdown) — public-data estimates undercount you, and first-party numbers build trust.
How to raise each component
- Comments: end with one specific, easy question; reply to every comment in the first hour (replies count, and they double the thread); pin a comment that invites disagreement.
- Saves: make content worth returning to — checklists, tutorials, recipes, reference tables. “Save this for later” asks work because saving is the natural response to utility.
- Shares: make content that says something about the sharer — relatable, funny, or identity-affirming. People share what they want to be seen endorsing.
- Likes: the cheapest signal, and mostly a function of reach and hook strength — improve the first line or first second and likes follow.
- The denominator: pruning ghost followers is largely cosmetic on recommendation-driven platforms, but posting when your audience is active and staying consistent raises the share of followers who actually see each post — which lifts the follower-based rate without changing the content at all.
This page is general information about social media metrics, not marketing, business or financial advice — platforms change their algorithms and benchmark studies disagree at the margins, so treat every threshold here as orientation rather than a guarantee.
FAQ
What is a good engagement rate on Instagram?
It depends on account size. Rival IQ's 2025 benchmark report puts the median brand engagement rate at just 0.36% of followers, and Socialinsider measured roughly 0.45-0.50% across all content types. Creator accounts run much higher: nano accounts under 10,000 followers often average 2-6%, while accounts over 1 million typically sit under 1%. As a rule of thumb, 1-3% is solid for a mid-sized creator and anything over 5% is exceptional.
Should I calculate engagement by followers or by reach?
Reach-based (or view-based) engagement is the truer measure of content quality, because it only counts people who actually saw the post. Follower-based is the industry convention: it is what most influencer platforms, media kits and brand deals quote, because follower counts are public and reach is not. Calculate both — use the follower-based number in your media kit, and the reach-based number to judge whether your content is actually improving.
Do saves and shares count as engagement?
Yes, and on some platforms they are the strongest signal you can send. Instagram's algorithm weights saves and shares heavily because they indicate real value, not passive approval. On TikTok, shares are widely considered the single most powerful engagement signal for reaching new viewers. Most third-party tools only count likes and comments because saves are not public — so your true engagement rate is usually higher than what outside tools report.
Why does my engagement rate fall as my account grows?
It is nearly universal and mostly mathematical. Small accounts have concentrated, loyal audiences where a large share of followers see and interact with every post. As you grow, you accumulate inactive followers, your content reaches a broader and less invested audience, and platform algorithms show your posts to a smaller fraction of your following. TikTok data illustrates it well: accounts under 100K followers averaged about 7.5% engagement in 2025, while accounts over 10 million averaged 2.88%.
What engagement rate do brands actually look for?
Most brands screen for engagement rate relative to your size tier, not one universal number. A common bar for Instagram influencer campaigns is 1-3% for mid-tier creators and 3%+ for nano and micro creators; on TikTok expectations are higher, often 5%+. Brands also increasingly look past the headline rate at comment quality, whether the audience matches their target market, and whether engagement is consistent across posts rather than spiked by one viral hit.
How do I find my average views, reach and saves?
Use each platform's native analytics: Instagram's professional dashboard (Insights) shows reach, saves and shares per post; TikTok Studio shows views, likes, comments, shares and saves; YouTube Studio shows views, likes and comments per video; X Premium's analytics show impressions per post. Average the last 10-20 posts, and exclude extreme viral outliers if you want a number that reflects your typical performance.