Permutations Calculator
Calculate P(n,r) - permutations where order matters. Find how many ways to arrange r items from n items.
What are Permutations?
A permutation is an arrangement of objects where ORDER MATTERS. P(n,r) counts how many ways to arrange r items selected from n items.
Formula
P(n,r) = n! / (n-r)!
Example
Arranging 3 people from a group of 5 for 1st, 2nd, 3rd place: P(5,3) = 60 ways