Vig/Juice Calculator

Calculate the bookmaker's margin (vig/juice/overround) and find true no-vig odds.

Choose 2-way for standard markets or 3-way for soccer-style markets with draw.
Decimal odds for the first outcome (e.g. home win).
Decimal odds for the second outcome (e.g. away win).

Market Analysis

Outcome Breakdown

How it works: The overround = sum of implied probabilities - 100%. Vig % = 1 - (1/overround_decimal). No-vig (true) probability for each outcome = implied_probability / sum_of_implied_probabilities. True (fair) odds = 1 / true_probability.