Pevlika

Permutation & Combination Calculator

Count arrangements and selections — exactly, even for huge numbers.

Runs in your browser — nothing is uploaded

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How to use Permutation & Combination Calculator

  1. Enter n (total items) and r (items chosen).
  2. Tick repetition if items can be reused.
  3. Read nCr, nPr and n!.

Questions

What’s the difference?

Permutations count ordered arrangements (ABC ≠ CBA); combinations count selections where order doesn’t matter.

Probability CalculatorProbability of A and B, A or B, complements and repeated trials. Statistics CalculatorMean, median, mode, standard deviation, variance and quartiles of a list. Prime Number CheckerCheck if a number is prime, factorize it and find nearby primes.