Enter values and select Calculate to see your result.
Calculate arrangements or selections from n items
Use whole numbers with 0 ≤ r ≤ n.
View formula
Permutations P(n,r) = n! ÷ (n−r)!; combinations C(n,r) = n! ÷ (r!(n−r)!).
Permutation And Combination Calculator
Calculate arrangements or selections from n items.