Vig (or juice) is the sportsbook's built-in margin. Both sides of a market imply more than 100% combined, and that extra is the book's edge.

How do you remove the vig?

Convert each side to an implied probability, add them together, then divide each one by that total. The result is the fair, vig-free probability.

No vig calculator

Enter both sides of a market to strip out the sportsbook margin and see the fair price and the true win chance behind it.

Side A price

Side B price

Book hold: 4.76%
Fair chance A: 50.00%
Fair chance B: 50.00%
Fair price A: +100
Fair price B: +100
Posted total: 104.76%

Why the vig matters

Both sides of a market always add up to more than 100%. At -110 / -110 the posted prices imply 104.76% — that extra 4.76% is the sportsbook's cut, and it is why a coin-flip bet needs to win 52.4% of the time just to break even.

Removing the vig gives you the market's honest view. Compare that fair number with your own estimate: if you think a side wins more often than the fair chance says, the price is in your favour. If not, it is not a bet worth taking.

Stratos does this across every book on every market and keeps a public settled record. Convert odds or see the track record.