Odds Converter Calculator

Odds Conversion Formulas:

\[ \text{Decimal} = \begin{cases} \frac{\text{American}}{100} + 1 & \text{if positive} \\ \frac{100}{|\text{American}|} + 1 & \text{if negative} \end{cases} \]

Decimal Odds:

American Odds:

Fractional Odds:

Implied Probability:

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1. What is an Odds Converter?

An odds converter is a tool that converts betting odds between different formats (Decimal, American, Fractional) and calculates implied probability. Different regions and sports use different odds formats, making conversion necessary for comparison.

2. How Does the Calculator Work?

The calculator uses mathematical formulas to convert between odds formats:

\[ \text{Decimal} = \begin{cases} \frac{\text{American}}{100} + 1 & \text{if positive} \\ \frac{100}{|\text{American}|} + 1 & \text{if negative} \end{cases} \]

Where:

Decimal Odds: Represent total return per unit staked (e.g., 2.50 means you get $2.50 back for every $1 bet)
American Odds: Positive shows how much profit on $100 bet, negative shows how much to bet to win $100
Fractional Odds: Traditional format showing profit relative to stake (e.g., 5/2 means $5 profit for $2 bet)
Implied Probability: Percentage chance the odds represent (e.g., 2.0 = 50%)

3. Odds Formats Explained

Details: Different sports and regions prefer different odds formats. American odds are common in the US, decimal in Europe, and fractional in the UK.

4. Using the Calculator

Tips: Enter your odds, select the current format, and the calculator will automatically show all other formats and the implied probability.

5. Frequently Asked Questions (FAQ)

Q1: Why convert between odds formats?
A: To compare odds from different bookmakers who may use different formats, or to understand odds in your preferred format.

Q2: Which format is best?
A: It's personal preference. Decimal is easiest for calculations, fractional is traditional, American shows clear profit amounts.

Q3: What does implied probability mean?
A: The percentage chance the odds suggest an outcome has, including the bookmaker's margin.

Q4: How do negative American odds work?
A: They show how much you need to bet to win $100. -200 means bet $200 to win $100.

Q5: Can I convert probability to odds?
A: Yes, enter the probability percentage as "implied" odds (e.g., 40% as 40).