Odds Converter & Implied Probability Calculator

Convert Between Odds Formats

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:

  1. Enter odds in any format (American, Decimal, Fractional, or Probability)
  2. Other formats will update automatically
  3. 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.