Given a lotto drawing with a Pick(x) out of (y) total choices, this calculates the probability of winning that lottery picking all (x) correct numbers.

This calculator has 2 inputs.

This calculator has 2 inputs.

- Ways to pick the winning number / Total Choices

For more math formulas, check out our Formula Dossier

- lotto
- a lottery game similar to bingo
- lotto drawing probability
- odds
- The ratio of a payoff to a stake
- probability
- the likelihood of an event happening. This value is always between 0 and 1.

P(Event Happening) = Number of Ways the Even Can Happen / Total Number of Outcomes