Expected Value (EV) Calculator
Determine if a bet has positive or negative expected value. Enter the odds and your estimated win probability to find +EV opportunities.
What is Expected Value?
Expected Value (EV) measures the average profit or loss per bet over time. A positive EV (+EV) means you'll profit in the long run if your probability estimate is accurate.
The Formula: EV = (Win Probability × Profit) - (Loss Probability × Stake). Professional bettors focus exclusively on finding +EV opportunities.
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Responsible Gambling
Gambling should be entertaining, not a way to make money. Only bet what you can afford to lose, and never chase your losses.
Signs of problem gambling:
- Betting more than you can afford to lose
- Chasing losses with bigger bets
- Lying to others about gambling habits