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Odds Converter
Instantly convert between American, decimal, and fractional odds formats. Enter a value in any field to see all conversions.
Common Odds Reference
Understanding Odds Formats
Different regions of the world use different odds formats. American odds (+150, -200) are standard in the US. Decimal odds (2.50, 1.67) are used in Europe, Australia, and Canada. Fractional odds (3/2, 2/1) are traditional in the UK and Ireland. They all represent the same thing — just expressed differently.
Reading American Odds
Negative odds (e.g., -150) tell you how much you need to stake to win $100. So -150 means stake $150 to win $100 profit. Positive odds (e.g., +200) tell you how much profit you'd make on a $100 stake. So +200 means $100 wins you $200 profit.
Reading Decimal Odds
Decimal odds show the total return per unit staked (including your original stake). Odds of 2.50 mean $1 returns $2.50 total ($1.50 profit + $1 stake back). To calculate profit: multiply your stake by the decimal odds and subtract your stake.
Reading Fractional Odds
Fractional odds show profit relative to stake. Odds of 3/1 mean for every $1 staked, you win $3 profit. Odds of 1/2 mean for every $2 staked, you win $1 profit. The left number is profit, the right number is the stake required.