Expected Value (EV) Betting Calculator
Sports & GamingCalculate the expected value of a bet given your estimated win probability, odds, and stake.
Expected Value
The average profit or loss you'd expect from this bet over many repetitions, given your estimated win probability.
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Odeh Ahwal0people find this calculator helpful
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Sports & Gaming calculators
Frequently Asked Questions
What does a positive expected value mean?
A positive EV means that, on average over many repeated identical bets, you'd expect to profit — though any single bet outcome is still binary (win or lose), EV only describes the long-run average.
Why is my own win probability estimate so important here?
EV is only as accurate as your probability estimate — if you're not genuinely better at predicting outcomes than the bookmaker's implied probability (which already includes their margin), you won't have a real edge regardless of what this calculator shows.
Is positive EV betting guaranteed to be profitable?
No — even strongly positive EV bets can lose due to variance, especially over a small number of bets. EV describes long-run expectation, not a guarantee for any individual outcome.
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