Permutation Formula: Permutation = The number of different ways that x items can be picked from a set of size y while regarding order

Permutation Definition The Permutation Calculator will easily calculate the number of permutations for any group of numbers. Just enter in the number of items in a set and the number of items to pick from the set and the online permutation calculator will instantly calculate the permutations possible as quick as a flash. Also, check out the Combination Calculator if the order of the numbers does not matter.

How to Calculate Permutation Let's be honest - sometimes the best permutation calculator is the one that is easy to use and doesn't require us to even know what the permutation formula is in the first place! But if you want to know the exact formula for calculating permutation then please check out the "Formula" box above.