AI EV calculator: what the bet is worth before you make it
expected value betting calculator: your true win probability plus the odds and stake — EV in dollars, ROI, and the breakeven win rate the price demands.
Nothing is worked out until you tap. Five runs a day, unlimited with a Velvet seat.
How it works
Expected value is the average result of the bet over many tries: win probability times the profit, minus lose probability times the stake.
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About the expected value calculator
Expected value is what a bet wins or loses on average if you placed it many times: your chance of winning times the profit, minus your chance of losing times the stake. Enter the odds and your win probability and the calculator returns the EV in dollars and as a share of the stake, plus the break-even probability the odds imply. A positive EV means the price is better than your number says it should be.
What is the break-even probability at -110?
52.4%. Win more often than that at -110 and the bet has positive expected value.