Combination & Permutation Calculator

Calculate combinations (nCr) and permutations (nPr) for any set size. Free online combinatorics calculator with step-by-step results.

n! / (r! × (n−r)!)

n (total)

r (choose)

Both Combination (nCr) Permutation (nPr)

Solution

—

Calculate combinations (nCr) and permutations (nPr) for any set size. Free online combinatorics calculator with step-by-step results.

Enter your values above and click Calculate to get your result. The calculator provides quick and accurate answers for all your math needs.