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    Vig Calculator

    Calculate bookmaker margin to find best odds

    Vig/Overround
    Calculate bookmaker margin to find best odds
    Results
    Overround (Vig)4.89%
    Excellent

    Implied Probabilities

    Home50.00%
    Draw28.57%
    Away26.32%

    True Probabilities

    Home47.67%
    Draw27.24%
    Away25.09%

    Fair Odds (no vig)

    Home
    2.10
    Draw
    3.67
    Away
    3.99
    Low overround (<5%) indicates better odds. Compare multiple bookmakers to find best value.

    What Vig / Overround is

    Vig is the bookmaker's built-in margin. Converting odds to implied probabilities and summing them reveals how expensive the market is.

    How to use it

    1. Enter odds for a market (2-way or 3-way).
    2. Check the total overround.
    3. Compare across books: lower overround often means better prices.

    You may also want: Odds Converter · EV Calculator

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