Permutation and Combination Calculator
Combinations ignore order; permutations treat different orders as distinct.
This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.
How it works
Combinations ignore order; permutations treat different orders as distinct.
Worked example
Choosing 3 from 10 yields 120 combinations and 720 permutations.
Keep in mind
Use nonnegative integers with r no greater than n.