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Expected Value (EV) Calculator

Find the expected value of a bet from its odds and your estimated win chance: profit or loss per $100 over the long run.

Expected value—
EV %—
Break-even chance—

The picks behind the math

LineScout gives the chance each NFL bet hits, the best price across 7 books, and a record graded in public. In beta: the first 100 sign-ups get Pro free.

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What expected value is

EV is what a bet earns on average if you could place it many times: (chance it wins × profit) − (chance it loses × stake). Positive EV means the price pays more than the risk is worth.

Where the win chance comes from

The hard part is an honest win chance. A sharp book's no-vig price is a strong estimate; your own opinion usually isn't. LineScout grades every pick it posts so you can see whether its chances hold up.

More free tools: Parlay Calculator · Odds Converter · Implied Probability Calculator · No-Vig Fair Odds Calculator · Kelly Criterion Calculator · Hedge Calculator · Arbitrage Calculator · Win Rate & ROI Calculator

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