Odds Converter

Convert between American, Decimal, and Fractional odds instantly

Enter Odds in Any Format
Enter + or - followed by number
Must be greater than 1.00
Format: numerator/denominator

Odds Format Reference

American Odds

Most common in US sportsbooks.

  • Negative (-): Amount to bet to win $100
  • Positive (+): Amount won on a $100 bet
Example: -150 means bet $150 to win $100
Decimal Odds

Popular in Europe and Australia.

  • Total return per $1 wagered
  • Includes your original stake
Example: 2.50 means $2.50 return per $1 bet
Fractional Odds

Traditional UK format.

  • Profit relative to stake
  • Numerator/Denominator format
Example: 5/2 means win $5 for every $2 bet

Common Odds Conversions

American Decimal Fractional Implied Prob Description
-1101.9110/1152.4%Standard vig line
-1501.672/360.0%Moderate favorite
-2001.501/266.7%Strong favorite
+1002.001/150.0%Even money
+1502.503/240.0%Moderate underdog
+2003.002/133.3%Clear underdog
+3004.003/125.0%Long shot