Is Permutation and Combination Calculator free to use?

Yes, Permutation and Combination Calculator is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using Permutation and Combination Calculator?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

Calculators

Compute permutations P(n, r), combinations C(n, r), and factorials for any n and r

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Total Items (n)

Items Chosen (r)

Permutations P(n, r)

720

Combinations C(n, r)

120

n! (10!)3,628,800

r! (3!)6

Permutations: P(n, r) = n! / (n - r)!

Combinations: C(n, r) = n! / (r! × (n - r)!)

Permutations count ordered arrangements; combinations count unordered selections.

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