Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr).
Result
Results are estimates for general information only and are not professional advice.
Permutations and combinations
Permutations count arrangements where order matters (nPr), while combinations count selections where order does not (nCr). This calculator computes both for your values of n and r, key tools in probability and statistics.
Frequently Asked Questions
What is the Permutation & Combination Calculator?
Calculate permutations (nPr) and combinations (nCr). It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Permutation & Combination Calculator?
The Permutation & Combination Calculator asks for the following values (2): n (total items), r (chosen). Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Permutation & Combination Calculator?
The Permutation & Combination Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Permutation & Combination Calculator free, and do I need an account?
Yes. The Permutation & Combination Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.