Expected Value (+EV) Calculator

Find out if a sportsbook's betting line gives you a mathematical edge over the house.

How to Use This Calculator

Expected Value (EV) measures the average amount you can expect to win or lose per bet if you placed it thousands of times.

Enter Your Stake Input the amount of money you plan to wager.
Enter Sportsbook Odds Input the Decimal odds being offered by the sportsbook for your chosen bet.
Enter True Probability Input the actual percentage chance you believe this bet has of winning (often derived from a No-Vig calculator or your own model).

The Goal: You want the output to be green (+EV). A positive EV means you have a mathematical edge over the sportsbook.

Stake ($)

Sportsbook Odds

True Win Prob (%)

Expected Value (Profit/Loss)

$0.00

Expected ROI

0.00%

Maximize Your +EV Edge

The easiest way to turn a negative EV bet into a positive EV bet is by line shopping. Compare the odds across Canada's top regulated platforms to find the best price.

Compare Canadian Sportsbooks →