โ Math
Permutations Calculator
Permutations count arrangements where order matters, so picking A then B is different from B then A. That is why there are always more permutations than combinations for the same n and r.
How it works
Total items (n)
Items arranged (r)
Permutations
Combinations
Permutations with repetition
n factorial
Frequently asked questions
How do I use the Permutations Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.