EXPECTED VALUE CALCULATOR

Estimate the expected value of a bet given the odds offered and your fair-probability estimate. The number that decides whether a bet is worth placing.

Expected Value

// WB://TOOLS/EXPECTED-VALUE

American odds

Your probability (%)

Stake ($)

Result

Expected value$15.50

EV % of stake+15.50%

Edge over market+7.38%

Breakeven prob47.62%

Profit if win$110.00

Loss if lose-$100.00

Positive expected value means the bet has long-run positive profit given your probability estimate. Edge over market is the gap between your estimate and the price's implied probability.

This tool is provided for educational purposes. It does not constitute financial or betting advice. Bet responsibly. 21+ where legal. 1-800-GAMBLER.