Expected Value Calculator

What is Expected Value (EV)?

Expected Value (EV) measures the average profit or loss you can expect from a bet over the long term. Positive EV indicates a profitable bet, while negative EV suggests you should avoid it.

This calculator helps you evaluate betting opportunities by comparing bookmaker odds with your estimated win probability to find value bets.

Enter Bet Details
Enter your estimated probability of winning as a percentage (0-100)
Results
Expected Value Analysis
  • Expected Value: $0.00
  • ROI: 0.00%
Interpretation

Please enter valid values for all fields.
How to Use This Calculator

The Expected Value (EV) calculator helps you determine if a bet is profitable in the long run.

  • Stake Amount: The amount you plan to bet
  • Decimal Odds: The odds offered by the sportsbook in decimal format
  • Win Probability: Your estimated probability of winning the bet (0-100%)

A positive EV indicates a profitable bet in the long run, while a negative EV suggests the bet is not profitable.

Tips & Best Practices
  • Use realistic win probabilities based on thorough research and analysis.
  • EV calculation assumes perfect probability estimation - be conservative with your estimates.
  • Positive EV does not guarantee short-term profit, but indicates long-term profitability.
  • Consider bankroll management and only bet what you can afford to lose.