Team math tool
Communication Channels Calculator
Compare original and expanded teams and calculate additional potential communication channels.
Airship communications deck
Add crew. Watch the possible connections multiply.
Adjust either team size to compare the possible connections.
Crew manifest
The expanded team cannot be smaller than the original team.
Live channel count
Important: This formula counts potential one-to-one paths. It does not mean every team member should communicate directly with every other person.
For the worked example and reasoning, read the related study guide.
How it works
The formula n(n - 1) / 2 counts unique one-to-one pairs. Compare an original team with an expanded team to see both totals and the number of potential channels added.
Example to try
An eight-person team has 28 potential channels. An eleven-person team has 55, so adding three people creates 27 additional potential channels.
Read the result
Potential channels describe coordination complexity. They do not mean that every person should communicate directly with every other person.