This calculator allows you to convert between different odds formats and see the implied probability. Simply enter odds in any format, and the other fields will update automatically. This helps you understand the true probability represented by odds in any format.
How to Use:
Enter odds in any format (American, Decimal, Fractional, or Probability)
Other formats will update automatically
Use the format that's most comfortable for you
Understanding Different Odds Formats
American Odds: Shows how much you need to bet to win $100 (negative) or how much you win on a $100 bet (positive)
Decimal Odds: Shows total return including stake (multiply your bet by this number)
Fractional Odds: Shows potential profit relative to stake (e.g., 3/1 means win $3 for every $1 bet)
Implied Probability: Shows the percentage chance of winning implied by the odds
Tips for Using Odds Formats
American odds are standard in the US market
Decimal odds are most common internationally
Fractional odds are traditional in UK betting
Implied probability helps assess true value
Note: Understanding different odds formats helps you spot value across different markets and regions.