Free Engagement Rate Calculator for Instagram & TikTok

Check any creator's engagement rate instantly. Understand what good looks like with benchmarks by follower tier -and why median-based calculation matters.

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What is engagement rate and why it matters

Engagement rate (ER) measures how actively an audience interacts with a creator's content. It's the single most important metric for evaluating influencer partnerships -more important than follower count, which can be inflated or bought.

  • Instagram ER formula: (Likes + Comments) / Followers × 100
  • TikTok ER formula: (Likes + Comments + Shares) / Views × 100
  • A high ER means the audience is genuinely engaged and responsive
  • A low ER (relative to follower count) may signal fake followers or disengaged audience
Followers125K
Median Likes4,375
Median Comments125
Engagement Rate3.6%
RatingAbove Average

Why median beats mean for engagement rate

Most engagement rate calculators use the mean (average) -but averages are easily skewed by one viral post or one dud. Untapper uses the median, which gives you the creator's typical, realistic performance.

  • Mean-based ER: One post with 500K likes inflates the average, making the creator look better than they consistently perform
  • Median-based ER: Shows you what a typical post actually gets -the 50th percentile. This is the engagement you can realistically expect from a partnership
  • Brands using median-based ER make better decisions and avoid overpaying for creators whose "average" is propped up by outliers
Mean ER5.8%
Median ER3.2%
Outlier Post487K likes
Typical Post4,200 likes
Skew Factor1.8x
Median is 45% lower than mean -more realistic

Engagement Rate Benchmarks

Benchmark ranges by follower tier

Engagement rate varies significantly by follower count. Nano-influencers typically have higher ER because their audience is more personal and niche. Here's what to expect by tier.

Follower Tier Instagram ER TikTok ER Rating
Nano (1K–10K) 4–7% 8–15% Highest engagement
Micro (10K–50K) 2.5–5% 5–10% Strong
Mid-Tier (50K–500K) 1.5–3% 3–7% Average
Macro (500K–1M) 1–2% 2–5% Typical
Mega (1M+) 0.5–1.5% 1–3% Below average common

How to check anyone's engagement rate

With Untapper, checking an influencer's engagement rate takes seconds -no spreadsheets, no manual counting, no API access needed.

  • Step 1: Install the Untapper Chrome extension
  • Step 2: Visit any Instagram or TikTok creator profile
  • Step 3: Untapper automatically calculates ER from the last 12 posts using medians
  • Step 4: See the engagement rate alongside health indicators, trend direction, and follower quality signals
Engagement Rate
3.6%
Above average for 125K followers
HEALTH
Strong
TREND
↗ Up
VIRAL
Medium

Tips for interpreting engagement rate results

A number alone does not tell the full story. Here is how to interpret engagement rate in the context of your influencer marketing goals.

  • Compare within tiers. A 2% ER for a 500K-follower account is good. The same 2% for a 5K account is poor. Always benchmark against the correct follower tier.
  • Check the trend. A creator with 3% ER and growing is a better bet than one with 4% ER and declining. Untapper shows this trajectory automatically.
  • Look at the median-mean gap. If mean ER is more than 1.5x the median, the creator has viral outliers inflating their average. Budget your campaign around the median.
  • Consider content type. Reels and TikTok videos tend to generate higher engagement than static Instagram posts. Compare like-for-like content types when evaluating creators.
Context Matters
ER (Raw)3.2%
Tier Benchmark2.5%
vs. Benchmark+0.7pp above
Trend↗ Improving
Median-Mean Gap1.2x (healthy)

Frequently Asked Questions

Common questions about engagement rate

What is a good engagement rate on Instagram?

It depends on the follower tier. For micro-influencers (10K-50K), 2.5-5% is considered good. For macro accounts (500K-1M), 1-2% is healthy. Nano-influencers (under 10K) often see 4-7% because their audience is more personal.

What is a good engagement rate on TikTok?

TikTok engagement rates are generally higher than Instagram. For micro-influencers, 5-10% is typical. Mid-tier accounts (50K-500K) see 3-7%. TikTok ER is usually calculated against views rather than followers, which accounts for the algorithmic distribution.

Why does Untapper use median instead of mean?

Median gives you the typical post performance (the 50th percentile), while mean is easily skewed by one viral post or one complete dud. If a creator has 11 posts with 5K likes and one post with 500K likes, the mean says 46K but the median says 5K. The median is what you can realistically expect from a sponsored post.

Check any creator's engagement rate.
Instantly.

Free engagement rate calculator for Instagram & TikTok. No login, no API keys. Just install and browse.

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