House Edge Calculator
Enter the decimal odds for both outcomes in a 2-way market (e.g., Over/Under, Moneyline) to instantly calculate the bookmaker's commission, also known as the vig or juice.
House Edge (Vig)
Understanding the House Edge (Vig)
The house edge, often called the "vig" (short for vigorish) or "juice," is the commission a bookmaker charges for taking a bet. It's how they guarantee a profit regardless of the outcome. In a perfectly fair market, the implied probabilities of all outcomes would add up to 100%. However, a bookmaker's odds will always result in a total probability greater than 100%.
This vig calculator helps you see that hidden cost. By inputting the odds for a two-way market (like a tennis match winner or a point spread), you can instantly see the percentage the bookmaker is taking. A lower house edge means better value for you, the bettor.
Comparing the house edge across different sportsbooks is a key part of a professional betting strategy. Even a small difference in the vig can have a significant impact on your long-term profitability. Use this tool to find the best lines and make more informed wagering decisions.
How It Works
- Outcome A/B Odds: Enter the decimal odds for each of the two possible outcomes.
- Calculation: The tool converts each odd into an implied probability (1 / odds).
- The Edge: It then calculates the total implied probability. The amount over 100% is the bookmaker's margin, which is displayed as the house edge.