Free tool

Expected Value (EV) Calculator

Expected value is the average profit a bet returns if you could place it over and over. Positive EV means the price is in your favour. Enter the odds you can get and your estimate of the true probability — or the fair odds — to see the edge.

Odds format

Odds you can bet

Stake

True probability from

Your win probability

Your tested estimate of how often this wins.

Expected value

+$10.00

per $100 staked

Edge

+10.00%

Implied vs. your prob.

45.5% vs 50.0%

This is a +EV bet — the odds are longer than the true probability justifies.

The hard part isn't the EV formula — it's the probability.

Anyone can multiply once you know the true win rate. Bull Metrics produces that number for thousands of markets by devigging the sharpest line on the market, so the EV you see is grounded in tested data, not a hunch.

See the live track record

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