Permutations (P(n,k))

Number of k-permutations of n.

Permutations Calculator

This calculator determines the number of ways to arrange n distinct items where order matters.

Use Cases

Security: Password combinations.
Scheduling: Ordering tasks or speakers.
Races: Predicting top 3 execution order.

Formula

P(n, k) = \frac{n!}{(n-k)!}

Where:

$n$ is total items
$k$ is items chosen to arrange