Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Betting Odds
Implied Probability Calculator
Convert betting odds into implied probability percentages across decimal, American, and fractional formats. Use it to spot value bets when your estimated probability exceeds the bookmaker's implied probability.
Fill in the required fields to see your result.
Betting Odds
Implied Probability Calculator
Convert decimal or American betting odds into implied probabilities and calculate the bookmaker's total margin (overround). Use it to identify which outcomes are overpriced and assess the book's built-in edge.
Fill in the required fields to see your result.
Key differences
| Implied Probability Calculator | Implied Probability Calculator | |
|---|---|---|
| Category | Betting Odds | Betting Odds |
| Inputs required | 2 | 4 |
| Result | Implied Probability (%) | Bookmaker Margin (%) |
| What it does | Convert betting odds into implied probability percentages across decimal, American, and fractional formats. Use it to spot value bets when your estimated probability exceeds the bookmaker's implied probability. | Convert decimal or American betting odds into implied probabilities and calculate the bookmaker's total margin (overround). Use it to identify which outcomes are overpriced and assess the book's built-in edge. |