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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
To Win
$0.00To Pay
$0.00You have entered an invalid value
If you want to convert between odds by hand (or 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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Other Betting Resources
- Betting Odds Calculator: Calculate your profit and payout based on your odds and bet amount.
- Parlay Calculator: Calculate the payout of a parlay based on the odds of each individual leg.
- Hedge & Arbitrage Calculator: Find the ideal hedge bet amount and guaranteed profit based on your original odds and bet amount.
- Free Bet Calculator: See how much profit you can guarantee yourself by betting the other side of a free bet.
- Odds to Probability Calculator: See the implied probability for a sports bet based on the odds.
- NFL Odds Calculator: See the projected payouts of your NFL bets.
- NBA Odds Calculator: See the projected payouts of your NBA bets.
- MLB Parlay Calculator: See projected odds and payouts of your MLB parlays including moneyline, run line, totals, and more.
- 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.
