Free tool
Engagement Rate Calculator
Interactions divided by people reached — the honest way to compare your group posts (member counts flatter; reach doesn't).
Interactions on the post
Engagement rate
5.5%
Good — above typical
- Total interactions
- 66
- Interactions per post
- 8.3
Compared across 8 posts. Judge a group by reach-scaled engagement, not raw likes — a 200-member group outperforming on rate beats a bigger one coasting on size.
Ready to stop doing this by hand?
Done by hand: measuring post performance — GroupBlaster does all three in one pass:
- writing the post once per campaign
- spinning a unique wording for every group
- sending it out paced and on schedule
Free tier: 5 campaigns, 10 posts/month. No credit card.
Engagement questions, answered
Benchmarks vary by niche, but for group posts: 1–3% is average, 3–8% is good, and 8%+ is excellent. Rate over reach keeps comparisons honest — 10 interactions on 200 reached beats 30 on 3,000.