Our odds converter allows you to enter your odds in one format (American, Fractional, or Decimal) and it will show you your odds in the other formats as well as the implied probability of winning. Simply fill out the bet amount and odds in any one format and our calculator will show you the results!
Odds Converter
Enter in your bet amount and the odds below to see how much you would win and what your odds are in American, Fractional, and Decimal formats as well as the implied probability of winning.
To Win
$0.00
To Pay
$0.00
You have entered an invalid value
If you want to convert between odds by hand (or with a calculator), you can use the following formulas:
Convert American Odds to Decimal:
- Positive odds: 1 + (American Odds/100)
- Negative odds: 1 – (100/American Odds)
Convert American Odds to Fractional:
- Positive odds: American Odds/100
- Negative odds: -100/American Odds
Convert Fractional Odds to American:
- Odds > 1: Fractional Odds x 100
- Odds < 1: -100/Fractional Odds
Convert Fractional Odds to Decimal:
- 1 + Fractional Odds
Convert Decimal Odds to American:
- Odds > 2: (Decimal Odds – 1) x 100
- Odds < 2: -100/(Decimal Odds – 1)
Convert Decimal Odds to Fractional:
- Decimal Odds – 1
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- How to Read Betting Odds: Learn how to read odds, calculate your payout, and calculate the implied probability of your bet winning in each odds format (American, Decimal, Fractional).
- Spread Betting Guide: Learn how betting on point spreads works and learn common strategies for doing so.
- Total (Over/Under) Betting Guide: Learn how betting on totals works and learn common strategies for doing so.
- Moneyline Betting Guide: Learn how moneyline bets work and learn common strategies for placing them.
- Types of Sports Bets: Learn about how each of the main types of sports bets works.
