Expected Value (EV) Calculator
Enter your price and the fair win probability to get EV per $100 and EV %.
How it works
EV = (win probability × profit if it wins) − (loss probability × stake). Get the win probability from a no-vig fair price (use the no-vig calculator). Positive EV doesn't mean a bet wins; it means the price is better than fair over many bets.
For information only. Math can't make a losing bet win. 21+.
Other calculators: No-Vig (Fair Odds) · Parlay · Kelly Criterion