Poker Equity Calculator

What equity actually measures

Equity is the share of the pot a hand wins on average if the hand is played to showdown from here. Deal every card that could still come, count who wins each time, and the fraction you take is your equity.

That is a counting problem, not a judgement call, which is why this calculator returns an exact answer rather than an estimate. Nothing is simulated and no sample is taken.

equity = (boards you win + boards you chop / 2) / all possible boards

How the calculation works

Four cards are known — your two and villain's two. The calculator removes them from the deck and enumerates every way the remaining board can complete: 1,712,304 boards preflop, 990 on the flop, 44 on the turn, and exactly one on the river.

Each board is scored for both players with the same hand evaluator, and the wins, losses and chops are counted. A chop counts as half a pot each, which is why equity and raw win percentage differ whenever a split is possible.

Common mistakes

Confusing equity with the chance of winning

They differ whenever a chop is possible. Two players holding the same pair have roughly 50% equity each but almost never 'win' — they split.

Reading one hand's equity as a range's

Equity against one specific holding tells you little about equity against everything villain would play that way. This tool answers the first question only.

Forgetting that equity is not the same as profit

Realising equity needs the hand to get to showdown. Position, stack depth and how often you are forced to fold all move the money you actually keep — that is equity realization, a separate idea.

Practical examples

AhKh vs QsQd on Jh 7h 2c

Two overcards and the nut flush draw against an overpair: 54.44% against 45.56%, counted over all 990 remaining runouts.

8c7c vs AsAd on 9c 6d 2h

An open-ended draw against aces: 36.87% against 63.13%, counted over all 990 remaining runouts.

KsKd vs AcQh on Kh 8s 3d Tc

A set against a gutshot and two overs, one card to come: 90.91% against 9.09%, counted over all 44 remaining runouts.

Key terms

Equity Realization

Understanding how much of your theoretical equity you actually capture.

Flush Draw

Nine outs to complete a flush — ~35% equity with two cards to come.

Open-Ended Straight Draw

Eight outs to complete a straight — ~31% equity with two cards to come.

Key takeaway

Exact equity is the anchor every other decision hangs off: compare it to the price the pot is laying you and the call answers itself. What it cannot tell you is what villain actually holds, and that is the harder half of poker.