💰
Vig Calculator
Remove the sportsbook's juice to find the true fair odds. See what the lines should be without any margin.
Calculate No-Vig Odds
Book Odds A
-110
52.38%
→
Fair Odds A
-100
50.00%
Book Odds B
-110
52.38%
→
Fair Odds B
+100
50.00%
Total Vig
4.76%
Vig Per Side
2.38%
What Is Vig (Juice)?
Vig (vigorish) is the sportsbook's commission built into the odds. At standard -110/-110 odds, the implied probabilities add up to 104.76%—that extra 4.76% is the vig, the book's guaranteed margin.
📐 How to Remove Vig
Divide each side's implied probability by the total implied probability, then convert back to odds. This gives you the "true" fair odds without any margin.
Why Fair Odds Matter
Fair odds help you evaluate whether a line offers value. If you're getting -105 when fair odds are -100, you're paying less vig. If you're getting -115 when fair is -100, you're overpaying.