No Vig Calculator

What is a No Vig Calculator?

The No Vig (or "no juice") calculator removes the sportsbook's built-in profit margin from betting odds, showing you the true "fair" odds and probabilities.

Sportsbooks inflate implied probabilities above 100% to guarantee profit—this excess is the vig. Removing it helps you spot value bets and compare lines accurately.

• Standard -110/-110 lines → 4.76% vig → Fair odds become +100/+100.
• Heavy favorite (e.g., -300/+240) → Fair odds adjust to reflect true win chances without the house edge.
• Useful for moneylines, point spreads, and totals (two-outcome markets).

How to Use the No Vig Calculator

• Enter the American odds for both sides of the bet (include + or - sign).
• Click "Calculate" to instantly see the bookmaker's vig percentage, fair no-vig odds, and true probabilities.
• Compare the fair odds to other sportsbooks—if you find better than fair, that's potential +EV!