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Permutations & Combinations Calculator

P&C Calculator

Calculate Permutations and Combinations with ease

Total Items (n):

Items to Choose (r):

Total Items (n):

Items to Choose (r):

Permutations

P(n,r) = n! / (n-r)!

Number of ways to arrange r items from n total items where order matters.

Combinations

C(n,r) = n! / (r! × (n-r)!)

Number of ways to choose r items from n total items where order doesn't matter.