TOOLS UNIVERSE / nCr

Permutation & Combination Calculator

Use Permutation & Combination Calculator online for free — fast, clear and without registration.

● Local in your browser · no upload
720P(n,r)120C(n,r)

n!/(n−r)!; n!/(r!(n−r)!)

METHOD

Calculation, assumptions and sources

Formula used

P(n,r)=n!/(n−r)!; C(n,r)=n!/(r!(n−r)!)

What is included

Calculate arrangements and selections with or without repetition and show the formula used.

Assumptions and limits

Inputs are treated as finite real numbers; rounding and model choices are shown with the result.

GUIDE

Permutation & Combination Calculator

Calculate arrangements and selections with or without repetition and show the formula used.

Enter the required values or content, adjust the options and then review the detailed result.

FAQ

Frequently asked questions

What can I do with Permutation & Combination Calculator?

Calculate arrangements and selections with or without repetition and show the formula used.

How do I use Permutation & Combination Calculator?

Enter the required values or content, adjust the options and then review the detailed result.

Are my data uploaded?

No. Inputs and files for this tool are processed locally in your browser.

Is this tool free?

Yes. Every feature is free and requires no registration.

Does it work on mobile?

Yes. The interface is optimized for iPhone, Android, tablets and desktop computers.