Expected Value Calculator
Find whether a bet has positive or negative expected value.
EV per unit
10.00%
Positive EV — bet has long-run value
EV on $100
$10.00
How it works
EV = true_prob × (decimal_odds − 1) − (1 − true_prob). Positive EV means the bet has long-run value. Use devigged sharp lines as your true_prob estimate.