Social Media Engagement Rate Calculator
Engagement rate is the headline number for how well a post resonates: the share of your audience that interacted with it. This calculator sums likes, comments, shares, and saves into total engagements, then divides by both your follower count and the post's reach to give engagement rate by followers and by reach. Enter the figures from your platform analytics and both rates update instantly. Because benchmarks vary by platform and audience, the most useful comparison is your own rate tracked over time, not a universal target.
Engagement rate formula
Total engagements = likes + comments + shares + saves
By followers = total / followers * 100
By reach = total / reach * 100
Per 1,000 followers = total / followers * 1,000
Engagement rate by followers measures your whole audience; by reach measures only those who saw the post. The per-1,000-followers figure normalizes engagement so you can compare posts across accounts of different sizes.
Reading the numbers
- Engagement rate by followers is the most common cross-account benchmark.
- Engagement rate by reach is usually higher because reach is smaller than followers.
- Smaller accounts often post higher engagement rates than large ones.
- Use one consistent definition of engagement when comparing posts.
- There is no universal official benchmark; track your own trend.
Engagement rate: frequently asked questions
How is engagement rate calculated?
Engagement rate is total engagements divided by an audience figure, times 100. Total engagements sum likes, comments, shares, and saves. Dividing by followers gives engagement rate by followers; dividing by reach gives engagement rate by reach, which is usually the higher and more flattering figure.
Should I divide by followers or reach?
Both are useful. Engagement rate by followers shows how your whole audience responds and is the common benchmark. Engagement rate by reach shows how the people who actually saw the post responded. This calculator reports both so you can compare like for like.
What counts as an engagement?
Typically likes, comments, shares, and saves. Some definitions add clicks or other interactions. Enter the counts you have; the calculator sums the four standard interactions. Use the same definition consistently when comparing posts.
What is a good engagement rate?
It varies widely by platform, audience size, and industry, so there is no single official benchmark. Smaller accounts often see higher rates than large ones. Track your own rate over time rather than chasing a universal target.
Why are my two rates so different?
Reach is usually smaller than your follower count because not everyone sees each post, so dividing by reach produces a higher percentage. If reach exceeds followers (for example a viral post shown to non-followers), the reach-based rate can be lower instead.
Official sources
- U.S. Small Business Administration: marketing your business.
- U.S. Federal Trade Commission: social media disclosure guidance.
Reviewed by the CalculatorHub team, edited by James Graham, 16 June 2026. See our methodology.