No-Vig Calculator
Remove the sportsbook margin and see the true fair odds for any market.
Scales both implied probabilities down proportionally until they sum to 100%. Simple and the industry default.
Enter both sides to remove the vig.
Frequently asked questions
What is the vig in sports betting?
The vig (or juice) is the margin a sportsbook builds into its odds. It is why the implied probabilities of both sides of a market add up to more than 100% — the extra is the book's commission.
How do you remove the vig from odds?
Convert both sides to implied probability, then remove the sportsbook margin using Multiplicative, Power, or Shin to estimate fair odds. Worst case shows the lowest fair probability any of those methods or Additive gives each side. Because the two minima are chosen separately, they can total less than 100%.
Why calculate fair odds?
Fair, no-vig odds from a sharp book like Pinnacle are the best available estimate of an outcome's true probability. Comparing them to the price at another book tells you whether a bet has positive expected value.
Which de-vig method should I use?
The multiplicative method is the simplest and most common. Additive and power methods distribute the margin differently and can be more accurate on lopsided markets with heavy favorites. For most two-way markets the differences are small.