8 Permute 2 — What is 8P2?
8P2 equals 56, meaning there are 56 distinct ordered pairs you can form from 8 items.
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 npr and the full breakdown beneath it.
Compute 8P2 to find the number of ways to select and arrange 2 items out of 8 in order.
Frequently asked questions
- What is a permutation?
- A permutation is an ordered arrangement. nPr = n!/(n-r)!. For example, P(5,2) = 5×4 = 20 ordered pairs from 5 items.