What does +240 mean?
Positive American odds show how much profit a $100 stake would return. +240 means $240 profit on $100, with a decimal price of 3.40 and an implied probability of 29.4%.
UFC odds calculator.
Convert American odds, decimal odds, fractional odds, and implied probability instantly. Built for quick fight-card reads, not spreadsheet pain.
AmericanDecimalFractionalProbability
What does -150 mean?
Negative American odds show how much you need to stake to win $100 profit. -150 means risking $150 to win $100, with a decimal price of 1.67 and an implied probability of 60.0%.
Probability is not certainty.
Implied probability is the market price before bookmaker margin. A bet only starts to look interesting when your estimated chance is higher than the price says.
Quick formulas
How the odds converter works.
These are standard odds conversions. They do not remove sportsbook margin or tell you whether a bet is good. See all current FightAlpha tools in Calculators.
Positive AmericanProbability = 100 ÷ (odds + 100)
Negative AmericanProbability = |odds| ÷ (|odds| + 100)
DecimalProbability = 1 ÷ decimal odds
FractionalDecimal = 1 + numerator ÷ denominator
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