Enter odds in any format
Convert betting odds between Decimal, Fractional, and American formats. Calculate implied probability and potential payout instantly.
Decimal Odds
Fractional Odds
American Odds
Stake Amount
Decimal Odds-
Fractional Odds-
American Odds-
Implied Probability-
Potential Payout-
Potential Profit-
About the Odds Converter
Our free odds converter calculator lets you instantly transform betting odds between the three major formats used worldwide: Decimal (European), Fractional (British), and American (Moneyline). Simply enter a value in one format and get instant conversions to the other two, plus implied probability and potential profit based on your stake.
How to Use This Calculator
Enter your odds in any of the three format fields and click Convert. The other fields will be automatically populated. Adjust the stake amount to see potential payout and profit. This calculator works for any sports betting market.
Frequently Asked Questions
What are decimal odds?
Decimal odds represent the total payout per unit staked. For example, odds of 2.50 mean you receive 2.50 for every 1 wagered, including your original stake. They are the most common format in Europe, Australia, and Canada.
How do I convert American odds to decimal?
For positive American odds (e.g., +150), divide by 100 and add 1: (150/100)+1 = 2.50. For negative odds (e.g., -200), divide 100 by the absolute value and add 1: (100/200)+1 = 1.50.
What is implied probability?
Implied probability is the likelihood of an outcome occurring as suggested by the odds. It is calculated as 1 divided by the decimal odds. Odds of 2.00 imply a 50% probability.
Why do implied probabilities add up to more than 100%?
The amount above 100% represents the bookmaker's margin (overround). This is how bookmakers ensure long-term profit regardless of the outcome.