Odds Calculator
Convert between probability and odds in various formats
About Odds
Odds express the likelihood of an event as a ratio, commonly used in gambling, medicine, and statistics.
Formulas:
- Odds: O = p / (1 - p)
- Probability from odds: p = O / (O + 1)
- Decimal odds: D = 1 / p
Examples:
- 50% probability = 1:1 odds (even odds)
- 25% probability = 1:3 odds (3 to 1 against)
- 75% probability = 3:1 odds (3 to 1 for)