Free betting calculator
Implied probability calculator
Convert American odds into the break-even probability represented by the sportsbook price.
Enter positive odds with a plus sign or number, and negative odds with a minus sign.
Implied probability52.38%
A calculated edge is an estimate, not a guarantee. Your result is only as reliable as the probability input.
What the result means
Use the number as an estimate
Implied probability translates a price into the win rate required to break even before considering any model or market view. Compare this number with your probability estimate to evaluate the price.
FormulaPositive odds: 100 ÷ (odds + 100). Negative odds: |odds| ÷ (|odds| + 100).
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