Fractional Odds to American Odds Converter
How to convert Fractional odds to American odds
Use this calculator to convert fractional odds into American odds. Simply input a valid fraction and the calculator will automatically convert it into American odds.
Formula used for converting fractional odds to american odds
Subtract 1 from the decimal odds and express the result as a fraction of two whole numbers.
For example, fractional odds of 3/2 convert to American odds of +150.
Fractional odds explained
Fractional odds are almost exclusively used in the UK and Ireland and is the traditional odds format there. Although most UK and Irish bettors are most used to the fractional odds, decimal odds have recently started to gain popularity. Fractional odds can be described as the ratio between the profit and the bet size. For example a fractional odds of 3/2 means for every $2 wagered the potential profit is $3.
American odds explained
American odds are predominantly used by US sportsbooks or other international sportsbooks that offer betting on US sports and leagues such as the NBA, NFL and MLB. In simple terms, american odds can be both positive and negative. Negative odds are the favourites to win and the number represents the amount you need to bet to win $100. So for example if the odds are -250 you need to bet $250 to win $100. Positive odds are kind of the opposite and instead represent how much you win if you bet $100.
Supported odds formats
This converter supports decimal odds, fractional odds, American odds, Hong Kong odds, Malay odds, Indonesian odds, and implied probability percentage.
Why use an odds converter?
Bookmakers and betting exchanges use different odds formats depending on region and market. An odds converter makes it easier to compare prices, understand implied probability, and analyze bets more accurately across different sportsbooks.
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