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No-Vig Odds Calculator

Strip the juice. Enter both sides of a market — get the no-vig fair odds and true implied probability for each side.

Market Odds

Devig Method

Proportionally removes vig from each side. Best for balanced markets.

Sportsbook Hold4.76%

Fair Odds Side 1

+100

50.0% true probability

Fair Odds Side 2

+100

50.0% true probability

Book vs Fair Comparison

Book-110
Fair+100
Implied52.4%
True50.0%
Book-110
Fair+100
Implied52.4%
True50.0%

About the No-Vig Odds Calculator

No-vig (or de-vigged) odds are what the line would look like if the sportsbook took zero margin. They represent the market's best estimate of the true probability of each outcome. Removing the vig is the standard way pro bettors convert raw market odds into fair-odds estimates they can compare against other books.

The classic +EV workflow: take a sharp market line (Pinnacle is the gold standard), strip the vig to get fair odds, then shop other books for prices that pay better than fair. Any book offering odds longer than the no-vig fair price is +EV.

Formula

No-vig probabilityp_fair = p_implied / (p_A + p_B)

Frequently asked questions

Which book should I de-vig?
The sharpest one available. Pinnacle is the universal benchmark because they take huge bets, don't ban winners, and respond fastest to information. Circa, BetCris, and the Hong Kong / Asian books are also sharp. Avoid de-vigging recreational books like DraftKings or FanDuel — their lines are softer.
Why is no-vig probability different from implied probability?
Implied probability includes the book's margin. No-vig probability removes it. On a -110/-110 market, each side's implied probability is 52.4%, but the no-vig fair probability is 50% — the missing 4.8% is the hold split across both sides.
Is the no-vig price always the true price?
No — it's the market's best estimate. If you have a model or information edge, your true probability can differ from no-vig probability. The bigger the gap, the bigger your edge.
Does this work on three-way markets like soccer 1X2?
Yes, the same proportional method applies — sum all three implied probabilities, then divide each by that sum. This calculator handles two-way markets; for 1X2 just extend the formula to three sides.

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