Permutation Calculator (nPr)
Calculate permutations using the formula P(n, r) = n! / (n - r)!. Permutations count the number of ways to arrange items where order matters.
Inputs
Results
Permutations (nPr)
720
Formula
P(10, 3) = 10! / 7!
Combinations (nCr)
120
For comparison (order ignored)