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Poker EV calculator

Updated August 2026 · by Tom Howcroft

The expected value of a call, from the pot, the bet you face and your equity. Positive EV means call, long run.

What does this result mean?

A poker EV calculator estimates what a call is worth on average if the same decision could be repeated many times. It weighs the full pot won when your hand succeeds against the amount lost when it fails, using your equity as the probability of each outcome. A positive result means the call earns money in the long run under those assumptions; a negative result means folding is better. The answer does not predict whether this individual hand will win, and it is only as accurate as the equity estimate and pot figures entered. Use it after the session to review close calls, test how much the decision changes when the opponent range changes and find the break-even point. In live play, round uncertain inputs conservatively instead of manufacturing precision that the read does not support.

£200
£100
40%
+£20
Expected value of the call

Expected value is what a decision is worth on average if repeated forever. For a river call it weighs the pot you win against the bet you lose, by your equity.

Example

Calling a £100 bet into a £200 pot with 40% equity is worth about +£20 in EV, a clear call.

Estimates for study and planning only, not a profit promise. Overshove tracks your real sample so these inputs come from your own data.

What does this calculator compute?

The calculator weighs the pot you win against the call you lose by your equity. A positive number means the call makes money on average if the same spot repeats.

When should the result change your decision?

Use it for close calls and study review. In game, you will estimate. Away from the table, run the numbers and tag the spot if your instinct was off.

How to use the answer responsibly

Treat the calculator as a planning tool, not a verdict on one session. A live poker input is usually an estimate: your win rate is noisy, your standard deviation changes by game type, and your future volume rarely matches the clean number you type into a form. The useful habit is to save the assumptions beside the result so you know what would need to change before the decision changes.

If the result pushes against what you wanted to do, do not smooth the inputs until the answer feels nicer. Make the conservative version first, using a lower win rate, a higher swing rate or fewer weekly hours. Then run the optimistic version. The space between those answers is the real decision area: where a shot needs a stop rule, where a move up needs more buy-ins, or where a good-looking hourly still needs a bigger sample.

Overshove calculators become more useful when the inputs come from your own logged sessions. Rake, tips, travel, hours, stake mix and session length all change the number. A generic benchmark can teach the shape of the problem, but a clean personal log gives the number you should actually act on.

Questions

What does a positive EV mean?

It means the call wins money on average if the same spot repeats forever. Over a large sample, taking the higher-EV option is what builds your edge regardless of any single result.

Do I need exact equity?

A reasonable estimate is enough to see whether a call is clearly plus or minus EV. Precise equity matters most in close spots near the break-even point.

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