Free Tool
No-Vig Calculator
Bookmakers bake a margin — the "vig" — into every market, so the posted odds overstate the true probabilities. Enter both sides of a market to strip out the vig and reveal the fair odds and real win probabilities. Completely free, no account needed.
No-Vig Calculator
The book's prices imply 104.8% total probability. Removing the 4.76% hold gives the fair prices above — use them to spot value at other books.
Informational tool only — not betting advice. No-vig prices are a fair estimate, most accurate when derived from a sharp book. 18+. Bet responsibly at licensed operators.
Enter every outcome's odds
Add the odds for all sides of the market — two-way for moneylines, spreads, and totals, or three-way for soccer 1X2.
We measure the overround
The implied probabilities are summed. Anything above 100% is the bookmaker's hold — the built-in margin you're paying.
Get the fair price
The margin is removed proportionally to reveal each outcome's fair odds and true probability — your benchmark for finding value.