Check Out Our Other Betting Calculators!

 

Parlay Calculator | Odds Converter | Kelly Criterion Calculator | Arbitrage Calculator 

 

 

How to Use the Expected Value (EV) Calculator

 

The Betstamp Expected Value (EV) Calculator helps you measure your edge against the sportsbook. By inputting your stake, odds, and the implied win probability of your bet, the calculator instantly shows whether your wager is profitable in the long run — and by how much.

 

Implied win probability can be taken directly from sportsbook odds or estimated using sharp, no-vig “fair” odds. Sharp bettors often rely on the most efficient markets to determine fair value and calculate edge, sometimes using advanced tools like the Kelly Criterion to size their bets accordingly.

 

Let’s walk through a quick example. Suppose you bet $100 on the Maple Leafs at +120 odds. A sharp sportsbook prices the fair odds closer to +100, suggesting a 50% win probability. Using the calculator, the expected value of your bet comes out to +$10. That means, on average, this bet will earn $10 every time you place it — a profitable (+EV) wager.

 

Using the EV calculator is one of the smartest ways to bet consistently with an edge. If you’re only placing bets where the EV is positive, you’re stacking the odds in your favor — and that’s how sharps win over time.

 

 

With Betstamp PRO—the most advanced top-down betting odds screen in the market. Bettors will find hundreds of daily betting edges with ease, allowing you to scale your profits long-term. Click the banner to book a free demo.