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
Arbitrage Betting Calculator
Identifies guaranteed profit from arbitrage opportunities by computing the optimal stake split across two bookmakers offering opposing sides of the same market. Use it whenever combined implied probabilities sum to less than 100%.
Fill in the required fields to see your result.
Key differences
| Implied Probability Calculator | Arbitrage Betting Calculator | |
|---|---|---|
| Category | Betting Odds | Betting Odds |
| Inputs required | 2 | 4 |
| Result | Implied Probability (%) | Arbitrage Profit ($) |
| 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. | Identifies guaranteed profit from arbitrage opportunities by computing the optimal stake split across two bookmakers offering opposing sides of the same market. Use it whenever combined implied probabilities sum to less than 100%. |