Poker Hand Equity Calculator
Compare any two starting hands preflop or on any board. Monte Carlo simulation computes win rates, tie percentages, and identifies the favorite instantly.
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Understanding Poker Equity
What Equity Means
Equity in poker represents your share of the pot based on the probability of winning the hand. If you have 60% equity in a $100 pot, your expected share is $60. Understanding equity is fundamental to making correct decisions about betting, calling, raising, and folding.
Preflop Equity
Preflop equity tells you how often each starting hand wins if the board is dealt out completely with no further action. While actual poker involves betting rounds, position, and reads, preflop equity provides the mathematical foundation for hand selection and range construction.
Pot Odds vs Equity
Pot odds vs equity is the core decision framework. If the pot is $100 and you must call $25, you need 25/(100+25) = 20% equity to break even. If your hand has 35% equity, calling is profitable in the long run. This single comparison, your equity versus the price you are getting, drives most correct poker decisions.
How Equity Changes Post-Flop
A hand like AKo has roughly 48% equity preflop against a pair of Queens, but if the flop comes A-7-2, your equity jumps to over 90%. Conversely, if the flop is Q-J-T, your equity plummets. The flop is the most impactful street because three community cards appear at once, often dramatically shifting the equity landscape. The turn and river each add one card and cause smaller but still significant swings.
Why Position Matters
Position matters because it determines information advantage. The player who acts last sees everyone else's decisions first. Even with identical equity, the in-position player realizes more of it because they can make more informed bets, value-bet thinner, and bluff more effectively. This is why professional players play wider ranges from later positions.
Common Preflop Matchup Categories
Cooler: AA vs KK, ~81% vs 18%. Overpair vs underpair, nearly unplayable for the loser.Domination: AK vs AQ, ~74% vs 26%. Shared card with weaker kicker, a tough spot.Coin Flip: AKs vs QQ, ~46% vs 54%. Overcards vs pair, nearly a 50/50 race.Race: 22 vs AKo, ~52% vs 48%. Small pair slightly favored over unpaired overcards.Understanding Poker Equity
Poker equity represents your share of the pot based on your probability of winning the hand at any given point. It is the single most important number in poker: every decision you make at the table can ultimately be reduced to whether the pot odds you are getting justify your equity in the hand. Mastering equity calculations transforms poker from a game of guesswork into a game of informed, mathematical decision-making.
Pre-Flop Equity: Starting Hand Rankings
Before any community cards are dealt, your equity is determined entirely by the strength of your hole cards relative to your opponent's range. Premium pairs like AA and KK dominate because they have high equity against almost any hand. Suited connectors like 87s have moderate equity but excel in multiway pots where they can make strong draws. Understanding pre-flop equity helps you select profitable starting hands, size your raises appropriately, and decide when to 3-bet or fold to aggression. The strongest players memorize key equity matchups and use them as anchor points for range construction.
Monte Carlo vs Exhaustive Enumeration
There are two primary methods for calculating poker equity. Exhaustive enumeration evaluates every possible combination of remaining cards to produce an exact equity figure. For a simple heads-up situation on the flop, this means evaluating all 990 possible turn-river combinations, fast and precise. However, for multiway pots or pre-flop calculations, the number of combinations explodes into the millions or billions. Monte Carlo simulation solves this by randomly sampling thousands of runouts and estimating equity from the results. It trades a tiny margin of error (typically less than 0.5% with 10,000+ samples) for dramatically faster computation. Our calculator uses both methods, automatically selecting the optimal approach based on the scenario.
Equity Realization: Why Raw Equity Isn't Everything
Raw equity assumes every hand goes to showdown, but real poker involves betting, bluffing, and folding. Equity realization measures how much of your theoretical equity you actually capture in practice. Position is the biggest factor: a hand like A5s in the big blind might have 40% equity against the button's opening range, but it only realizes about 70% of that because playing out of position forces you to check-fold too often. Conversely, the same hand on the button might realize 110% of its equity because positional advantage lets you bluff and value-bet more effectively. This is why professional players play far wider ranges from late position.
Post-Flop Equity Shifts
The flop is where equity changes most dramatically. A hand like 87s might have only 38% equity pre-flop against an overpair, but if the flop comes 6-5-2 with a flush draw, that equity jumps to 55% or higher. Learning to recognize these equity shifts, and bet accordingly, is a hallmark of strong post-flop play. When you flop a combo draw (straight draw plus flush draw), you often have more equity than a made hand and should play aggressively.
Using Equity in Decisions: Pot Odds vs Equity
The fundamental rule of profitable poker is simple: call when your equity exceeds the pot odds you are getting. If the pot is $100 and your opponent bets $50, you need to call $50 to win $150, giving you pot odds of 33%. If your equity is 40%, calling is profitable in the long run. This framework extends to every decision: raising, folding, and even bluffing (where you calculate how often your opponent needs to fold for your bluff to be profitable). Combine equity analysis with expected value calculations for a complete decision framework, and use our ICM calculator when tournament equity considerations apply. For counting your drawing outs, try the poker outs calculator.
Classic Equity Matchups Every Player Should Know
| Hand 1 | Hand 2 | Equity (Hand 1) | Equity (Hand 2) |
|---|---|---|---|
| AA | KK | 81.9% | 18.1% |
| AKs | 46.3% | 53.7% | |
| AKs | AKo | 52.5% | 47.5% |
| JJ | AKo | 57.3% | 42.7% |
| 22 | AKo | 52.5% | 47.5% |
These matchups illustrate a key principle: even massive pre-flop favorites like AA only win about 4 out of 5 times against the second-best hand. Poker is a long-run game, and understanding these percentages prevents tilt when your aces get cracked.
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