Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr), with and without repetition.
About the Permutation & Combination Calculator
Count the ways to arrange or choose items. Permutations (nPr) count ordered arrangements — like finishing positions in a race. Combinations (nCr) count selections where order doesn't matter — like picking lottery numbers or a team.
How to use the Permutation & Combination Calculator — step-by-step guide
Frequently asked questions
Is the Permutation & Combination Calculator free?
Yes. The Permutation & Combination Calculator on Apex Tool Station is 100% free with no signup and no watermark. Browser tools have no usage limits.
Are my files or data uploaded to a server?
No. Everything runs locally in your browser using JavaScript. Your files and text never leave your device, which makes it safe for private documents.
Does it work on mobile?
Yes. The tool works on any modern browser on Android, iPhone, Windows, Mac and Linux.