About ERC.
The free engagement rate calculator built for creators, marketers, and agencies.
Our mission
We built ERC because calculating engagement rates should be simple, free, and private. Too many tools require sign-ups, email addresses, or paid subscriptions just to divide two numbers. We believe every creator and marketer deserves instant access to their engagement metrics without friction.
What we do
ERC is a multi-platform engagement rate calculator that supports Instagram, TikTok, YouTube, Facebook, LinkedIn, and Twitter. Enter your numbers, get your rate, and see how you compare against up-to-date benchmarks for your follower tier — all in seconds.
Key principles
100% free
No premium tier, no subscription, no hidden fees. Free for everyone, forever.
Privacy first
All calculations happen in your browser. We never collect, store, or transmit your data.
No sign-up
No account, no email, no login wall. Just open the calculator and use it.
Always updated
Benchmarks reflect the latest industry data across all platforms and follower tiers.
Who it's for
ERC serves anyone who needs to measure social media engagement:
- Creators and influencers tracking their growth and content performance
- Brands and agencies evaluating potential creator partnerships
- Social media managers reporting on campaign results
- Students and researchers studying social media metrics
How it works
Our calculator uses the standard engagement rate formula: (Total Engagements ÷ Followers) × 100. We also support calculation by reach and by views for platforms where those methods are more appropriate. Each platform page includes the specific metrics that matter most — likes, comments, shares, saves, retweets, or reactions depending on where you're calculating.
Open and transparent
We show our formulas, explain our methodology, and keep our benchmarks sourced from publicly available industry research. There are no black boxes here — you can verify every calculation we make.