6 Choose 2 — What is 6C2?
6C2 equals 15, the number of ways to pick any 2 items from a group of 6.
How to use this tool
- Enter n (total items) and r (items chosen) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your ncr and the full breakdown beneath it.
Quickly compute 6C2 to see all possible unordered pairs that can be selected from 6 distinct items.
Frequently asked questions
- What is a combination?
- A combination is an unordered selection. nCr = n!/(r!(n-r)!). For example, C(5,2) = 10 — choosing 2 from 5 ignoring order.