Expected Value Calculator Guide – How to Calculate EV in Betting | BookieBrawler

How to use an expected value calculator for sports betting. Understand the EV formula, determine true probability, and find +EV bets.

What Is Expected Value?

Expected value is the average amount you'd expect to win (or lose) per bet if you placed the same bet thousands of times. A positive EV (+EV) bet is one where the math is in your favor. A negative EV (-EV) bet favors the sportsbook.

EV Formula

EV = (Win Probability × Profit if Win) − (Loss Probability × Amount Lost)

How to Use an EV Calculator

Try BookieBrawler's free EV calculator to run the numbers on any bet.

• Enter the <strong>odds</strong> of the bet you're considering
• Enter the <strong>true probability</strong> of the outcome (from your model or no-vig calculation)
• Enter your <strong>bet amount</strong>
• The calculator outputs your expected profit per bet

Determining True Probability

The hardest part of EV calculation is determining the true probability. Methods include:

• <strong>No-vig lines:</strong> Remove the juice from sharp sportsbook odds to estimate fair probability
• <strong>Statistical models:</strong> Build your own projections based on data
• <strong>Market consensus:</strong> Average no-vig odds across multiple books