Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Math
Basic Probability Calculator
Instantly calculate the probability of an event by entering the number of favorable and total outcomes. Useful for dice, cards, lotteries, and any scenario with countable outcomes.
Fill in the required fields to see your result.
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.
Key differences
| Basic Probability Calculator | Combination Calculator | |
|---|---|---|
| Category | Math | Math |
| Inputs required | 2 | 2 |
| Result | Probability | C(n,r) |
| What it does | Instantly calculate the probability of an event by entering the number of favorable and total outcomes. Useful for dice, cards, lotteries, and any scenario with countable outcomes. | 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. |