Win Probability Calculator

MARKET FORM / BETTING CALCULATORS

Odds ⇄ Win Probability

Price converter

Convert a price into its implied chance, or turn your own estimated win chance into fair odds.

01

Odds to implied chance

What percentage does the price represent?

Implied win chance—This is the price’s implied chance, not a prediction.
02

Win chance to fair odds

Start with your own estimated probability.

Decimal odds—
Fractional odds (approx.)—
American odds (rounded)—
Remember the marginA bookmaker’s price includes its market margin. Its implied chance is not necessarily the horse’s true chance. Fair odds here reflect only the probability you enter.