Combinations Calculator by Online Tool Base
Count the Groups. The Combinations Calculator at Online Tool Base determines how many ways you can select items from a group where order does not matter.
Lottery Logic
onlinetoolbase.online solves $nCr$:
- Formula: $n! / (r!(n-r)!)$.
- Example: Picking 3 winners from 10 contestants.
- No Repetition: Distinct items only.
How to Use
- Enter Total Items (n).
- Enter Selection Size (r).
- See Total Combinations.
Select groups with the Combinations Calculator from Online Tool Base.