Permutation & Combination Calculator

Calculate nPr (permutations) and nCr (combinations) for any values of n and r.

How to use

  1. Enter n (total items) and r (items chosen).
  2. nPr = arrangements where order matters.
  3. nCr = selections where order doesn't matter.

Related tools:

Probability CalculatorPrime Number CheckerScientific Calculator