No-Vig Fair Odds Calculator
Enter both sides of a market to strip out the bookmaker's margin and see fair odds.
How the no-vig calculation works
First each side's odds are turned into implied probabilities. Their total is above 100% because of the margin. Dividing each side by that total rescales them to exactly 100%: those are the fair, no-vig chances.
Example: both sides at -110 each imply 52.4%, a total of 104.8%. The margin is 4.8%, and the fair chance of each side is 50%, or +100.
FAQ
What is the vig?
The vig (or juice) is the bookmaker's built-in margin. It is why an even game is priced -110 on both sides instead of +100.
Can I use it for soccer?
Yes. Add the draw odds and the calculator removes the margin across all three outcomes.
Why does fair odds matter?
Fair odds show what the market really thinks before the margin, which makes it easier to judge favorites and underdogs.