Here’s my formula for calculating twitter reach:

(Retweets / Followers) = Twitter Reach (The % of my audience each tweet reached)

Example for my current company:

(116 / 2523) = 4%

 

Most formulas I’ve seen include a variable representing how many followers each fan has to calculate Twitter reach but I prefer to skip it. Why? Follower numbers vary significantly based on activity and most Twitter users aren’t very active — 10% of Twitter members create 90% of all tweets.

 

What’s success in this calculation?  I’m setting a goal of 10.  How would you adapt this formula? What are you measuring?