Odds Converter
Convert between American, Decimal, and Fractional odds formats
How to Use the Odds Converter
- Select the odds format you want to convert from (American, Decimal, or Fractional)
- Enter the odds value in the input field
- Click "Convert" to see the odds in all three formats
Understanding Betting Odds Formats
American Odds (Moneyline)
Most common in the United States. Uses positive (+) and negative (-) numbers.
- Negative odds (-110): Shows how much you need to bet to win $100
- Positive odds (+150): Shows how much you win on a $100 bet
Decimal Odds (European)
Popular in Europe, Canada, and Australia. Represents total return (stake + profit).
- Example: 2.50 odds means you get $2.50 back for every $1 wagered
- Easy calculation: Multiply your stake by the decimal
Fractional Odds (UK)
Traditional format in the UK and Ireland. Shows profit relative to stake.
- Example: 3/1 means you win $3 for every $1 wagered
- Reading it: First number is profit, second is stake
Quick Conversion Examples
| American | Decimal | Fractional |
|---|---|---|
| -110 | 1.91 | 10/11 |
| +150 | 2.50 | 3/2 |
| -200 | 1.50 | 1/2 |
| +300 | 4.00 | 3/1 |
Frequently Asked Questions
Why do I need to convert odds?
Different sportsbooks use different formats. Converting helps you compare odds across bookmakers and understand the true value of a bet regardless of format.
Which format is best?
Decimal odds are often considered easiest for calculations. American odds are standard in the US. Use whichever format you're most comfortable with.
Are converted odds exact?
Yes, our calculator uses precise mathematical formulas. Note that some fractional odds are rounded to the nearest simple fraction for readability.