nCr

Statistics

Permutation and Combination Calculator

Calculate permutations or combinations for n and r.

Preparing Permutation and Combination Calculator

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Input

Choose nPr or nCr and enter n and r. You will see the result first and the step-by-step solution below.

Input summary

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Step by Step Calculation

nCr

Step by step calculation shows here

Calculate first and the full working will appear below automatically.

How to use Permutation and Combination Calculator

Enter the values you know, tap Calculate to see the result first, then review the optional step-by-step solution below.

What this calculator is for

Choose nPr or nCr and enter n and r.

Tips

Use clean numbers and symbols so the solver reads them correctly.
For lists, separate numbers with commas, spaces, or new lines.
For matrices, put each row on a new line.

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