Expected Value Calculator
Estimate long-term value of bets based on win probability and odds
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Expected Value:
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ROI:
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The expected value (EV) calculator measures the profitability of a bet over the long term. By combining the win probability you assign to a wager with the offered odds, it calculates your average profit or loss per bet if the same scenario were repeated multiple times.
A positive EV suggests the bet is profitable over time, while a negative EV signals expected losses. This tool is critical for value bettors who want to move beyond intuition and quantify whether a wager has an edge against the sportsbook.