Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Math
Combination Calculator
Calculate the number of unordered selections of r items from n distinct items, where the order does not matter. Ideal for lottery draws, committees, and poker hands.
Fill in the required fields to see your result.
Math
Factorial Calculator
Instantly compute the factorial of any non-negative integer. Use it for combinatorics, permutations, probability problems, and algebra involving n!
Fill in the required fields to see your result.
Key differences
| Combination Calculator | Factorial Calculator | |
|---|---|---|
| Category | Math | Math |
| Inputs required | 2 | 1 |
| Result | C(n,r) | Factorial |
| What it does | Calculate the number of unordered selections of r items from n distinct items, where the order does not matter. Ideal for lottery draws, committees, and poker hands. | Instantly compute the factorial of any non-negative integer. Use it for combinatorics, permutations, probability problems, and algebra involving n! |