UnjuicedImplied Probability Calculator
Translate a sportsbook price into the win rate required to break even.
Sportsbook price
Break-even point
Implied probability
52.38%
Decimal odds
1.909
Profit on a win
$90.91
Total payout
$190.91
Your fair win probability must be higher than the implied probability for the offered price to have positive expected value.
How to use the Implied Probability
Implied probability turns a betting price into the minimum win rate needed to break even. It makes prices easier to compare with your own estimate of an outcome.
- 1Choose American or decimal odds.
- 2Enter the price offered by the sportsbook.
- 3Compare the implied break-even rate with your projected win probability.
Formula and assumptions
Decimal odds: probability = 1 / decimal odds. American odds use separate formulas for positive and negative prices.
A sportsbook price usually includes margin, so implied probabilities across every outcome can add up to more than 100%.
Implied Probability calculator FAQ
Answers about this free implied probability calculator, sports betting odds, payouts, and the math behind each result.
What is implied probability?
It is the break-even win rate represented by a betting price, before accounting for your own edge or the sportsbook margin.
Does implied probability include vig?
Yes, a single sportsbook price normally includes vig. Use the no-vig calculator to estimate fair probabilities across a complete market.