What Is Engagement Rate? Formula and Worked Example
Engagement rate is the percentage of people who interact with a piece of content — through likes, comments, shares, and saves — relative to how many saw it or follow you. It measures how compelling your content is, not just how many people it reached.
Brands care about engagement rate more than follower count, because it shows whether an audience actually responds. A creator with 20,000 engaged followers often outperforms one with 200,000 passive ones.
The formula
There are two common versions. The one you use depends on whether you measure against reach or followers.
Engagement rate by reach Engagement Rate = (Total Engagements ÷ Reach) × 100
Engagement rate by followers Engagement Rate = (Total Engagements ÷ Followers) × 100
Total engagements = likes + comments + shares + saves (and sometimes clicks).
By reach is the most accurate for a single post, because it compares interactions to the people who actually saw it. By followers is the most common in brand-deal conversations, since it's easy to calculate from public numbers.
Worked example
Say you have 10,000 followers and you post a Reel that gets:
- 600 likes
- 80 comments
- 45 shares
- 75 saves
Total engagements = 600 + 80 + 45 + 75 = 800
Engagement rate by followers = (800 ÷ 10,000) × 100 = 8%
Now say that same Reel reached 6,500 accounts. Engagement rate by reach = (800 ÷ 6,500) × 100 = 12.3%.
Both are healthy. For context, an engagement rate by followers above roughly 3-6% is generally considered strong on most platforms, though it varies by niche and follower size. You can skip the math and run your numbers through the engagement rate calculator — it's free, needs no sign-up, and gives you both versions instantly.
Why it matters for your pay
When you pitch a brand, your engagement rate is a key part of your rate. Two creators with the same follower count can command very different prices if one engages 8% of their audience and the other engages 1%. A high rate signals an audience that actually acts on what you say — which is exactly what a sponsor is paying for.
That's why your media kit should lead with engagement rate, not just reach. Once you know it, you can plug it into the brand deal rate calculator to estimate fair pricing.
Common mistakes
- Mixing the two formulas. Reach-based and follower-based numbers aren't comparable. Always say which one you mean.
- Forgetting saves and shares. On many platforms, saves and shares carry more weight than likes. Leaving them out understates your real engagement.
- Averaging across years. Old posts drag your number down. Calculate over your last 9-12 posts for an accurate current picture.
- Reporting one viral post. A single outlier makes your rate look better than your norm. Brands check averages.
FAQ
What's a good engagement rate? It depends on platform and size, but by followers, 1-3% is average, 3-6% is good, and above 6% is excellent. Smaller accounts usually post higher rates than large ones.
Should I use reach or followers in the formula? Use reach for the most accurate read on a single post. Use followers when comparing creators or pitching brands, since follower counts are public and consistent.
Do likes count more than comments? Comments and shares usually signal stronger interest than likes, and many algorithms treat them that way. All count as engagement, but weight your strategy toward the deeper signals.
Why is my engagement rate dropping as I grow? This is normal. Larger audiences are less uniformly interested, so the percentage that engages naturally falls. Watch the trend, not just the number, and explore more free tools to track it.