Implied Probability Calculator
Calculate the implied probability from betting odds. Understand what the odds suggest about the likelihood of an outcome.
Implied Probability Calculator
Calculate the implied probability from betting odds
💡 Click on any common odds above to quickly calculate its implied probability.
Formula
Implied Probability = (1 / Decimal Odds) × 100Implied probability shows the likelihood of an outcome as suggested by the odds.
How to Use
- 1Select format — Choose the odds format (American, Decimal, or Fractional).
- 2Enter odds — Input the odds you want to analyze.
- 3View probability — See the implied probability and compare to your own estimate.
- 4Find value — If your estimated probability is higher, the bet may have value.
Frequently Asked Questions
What is implied probability?
Implied probability is the probability of an outcome as suggested by the betting odds. It represents what the bookmaker believes (or wants you to believe) is the likelihood of that outcome occurring.
How do I find value bets?
A value bet exists when your estimated probability of an outcome is higher than the implied probability from the odds. For example, if odds imply 40% but you believe it's 50%, that's a value bet.
Why do implied probabilities add up to more than 100%?
Bookmakers include a margin (vig/juice) in their odds. For a two-outcome event, the implied probabilities might add up to 105-110%, with the excess being the bookmaker's profit margin.
What are "fair odds"?
Fair odds are the odds that would exist without any bookmaker margin. They represent the true probability converted to odds. Fair odds = 1 / (probability / 100).
How accurate are implied probabilities?
Implied probabilities from betting markets are often quite accurate, especially for major events with high liquidity. However, they include the bookmaker's margin and may not reflect true probabilities perfectly.