Vig Calculator
Find the hidden fee in betting odds. Remove the juice to see the true probability.
Why "Fair Odds" Matter
When you see a line like -110 / -110, the bookmaker is implying that both teams have a 52.38% chance of winning. If you add those up, you get 104.76%. That extra 4.76% is the "Vig" or "Juice".
To beat the bookie, you need to know the True Probability. By removing the vig, we see that a -110/-110 coin flip really implies a 50% chance for each side. The "Fair Odds" would be +100.
The Strategy: Only bet when your handicapped probability is higher than the "No-Vig" probability. That is positive Expected Value (+EV).
Most US sportsbooks use "standard" -110 lines. This equates to roughly 4.5% - 4.8% vig. Anything higher is expensive.
Sharp books often offer -105 lines. This lowers the vig to ~2.4%. Over a season, betting into reduced juice saves massive amounts of money.
Soccer or Hockey markets (1X2) often have higher vig (6-8%) because there are three outcomes to balance. Always check the margin.
Frequently Asked Questions
What is Vig (Vigorish) in sports betting?
Vig, short for vigorish (also called juice, margin, or the cut), is the fee bookmakers charge for taking a bet. It is built into the odds. For example, in a fair coin toss, odds would be +100/-100 (50/50). Sportsbooks typically offer -110/-110, creating a margin that ensures they profit regardless of the outcome.
How do I calculate Vig percentage?
First, convert all odds to implied probabilities (e.g., -110 = 52.38%). Sum these probabilities. The amount exceeding 100% is the **Overround**. To find the Vig percentage: **Vig = 1 - (1 / Total Implied Probability)**.
What is a "No-Vig" or "Fair" price?
The "No-Vig" price is the true probability of an outcome happening, with the bookmaker's margin removed. If a team is -110 to win but the "Fair Price" is +105, betting -110 is a losing proposition long-term.
What is considered a low or good Vig?
Standard vig is around **4.0% - 4.8%** (typical -110 lines). "Reduced Juice" sportsbooks offer vig around **1.5% - 2.5%** (-105 lines). Anything above 5% is considered high, often found in props or futures markets.