Reach vs. Engagement: Which Number Actually Matters

Why this matters

Reach and engagement rate measure different things and optimizing for one often harms the other — a post seen by 100,000 people with 0.2% engagement tells a different story than one seen by 2,000 with 12% engagement. Knowing which metric actually signals content quality for your specific goal prevents optimizing vanity over value.

Try it yourself

1. Pull your last 10 posts and calculate the engagement rate for each using the formula: (likes + comments + shares) / reach × 100 — rank them and note whether your highest-reach post is also your highest-engagement post.
2. Identify one post with high reach but low engagement rate and one with low reach but high engagement rate — write a one-sentence hypothesis about why each performed the way it did.
3. Check your platform analytics to find the benchmark engagement rate for your account size — compare it against your average from the last 30 days.

References

• Sprout Social — Social Media Metrics That Matter