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Odds ↔ Probability Converter: Free Tool
Instantly convert decimal odds to probability and vice versa
Formula used
Probability (%) = (1 / Odds) × 100
Example: Odds of 2.00 correspond to a 50% probability (1/2 × 100).
How This Tool Works
Every set of odds implies a probability. This converter translates between odds and probabilities, helping you understand the bookmaker's view of an event. Compare the implied probability with your own assessment to find value bets.
How to Use
- 1Enter decimal odds to see the implied probability
- 2Or enter a probability (%) to see the equivalent decimal odds
- 3Compare implied probabilities across bookmakers to spot discrepancies
Pro Tips
- Bookmaker odds always include a margin — the implied probabilities sum to more than 100%
- Remove the margin to get 'fair' odds, then compare with your estimate
- Lower odds = higher implied probability = the bookmaker thinks this outcome is more likely