Poker Equity Calculator

Studying preflop matchups will change how you play

Here is something that happens at every level of poker, from $2 games to $500 buy-ins. A player gets dealt pocket queens, someone raises, someone else re-raises, and the queens player thinks "I probably have the best hand." Maybe. But queens vs. ace-king suited is about 54-46. That is almost a coinflip. And queens against aces? You are drawing to about 18%. Knowing these numbers does not tell you what to do, but it changes the confidence with which you do it.

The equity calculator is a study tool, not a play-at-the-table tool. You cannot punch in your opponent's cards during a hand because you do not know what they have. What you can do is sit down after a session, pull up the hands you were unsure about, and see where you stood. That process, doing it repeatedly, is how your gut develops in the first place. Intuition is not magic. It is pattern recognition built through repetition.

The hand vs. range mode is where things get interesting. Individual matchups are useful to a point. AA vs. KK tells you one thing. But in a real hand, you do not know your opponent has KK specifically. You think they have a range: maybe QQ+, AK, maybe some bluffs. When you plug in a range instead of specific cards, the numbers change. Your aces still dominate, but against a wide range they might only have 65% equity instead of 81%. That difference matters for pot-sizing decisions.

Crypto poker players tend to be a mix of recreational gamblers and grinders. The recreational players call too wide, which means your big pairs go up in value but your bluffs go down. The grinders play tighter ranges, which means you can fold more medium-strength hands against their aggression and feel fine about it. Using the range mode to simulate both types of opponent helps you adjust your default strategy based on who is at the table.

The common matchups table at the bottom is there because the same questions come up constantly. "Is AK suited really a coinflip against queens?" (Close, about 46-54.) "How bad is it calling with tens against a 4-bet?" (Depends on the range, but often worse than you think.) "Can I ever fold kings preflop?" (Against aces only, and even then you need a strong read.) These are the questions that poker forums have been arguing about since the early 2000s, and the answers have not changed.

One study method that works well: take the top 20 matchups from the reference table and try to guess the equity before looking. Write your guess down. Then check. You will probably be within 5% on the obvious ones (pair vs. underpair) and off by 15% on the less common ones (suited connectors vs. high pairs). The matchups where your estimate is furthest off are exactly the spots where you are making mistakes at the table. Focus your study there.

Equity is not the whole picture. Position, stack depth, and opponent tendencies all matter. But equity is the foundation everything else is built on, and most players overestimate how well they understand it.

Sources and methodology

• CardFight: AA versus JJ preflop statistics: Exhaustive heads-up win, tie, and equity breakdown for a fixed AA versus JJ suit assignment.
• PokerNews Texas Hold'em Poker Odds Calculator: Independent multi-player calculator for checking exact card-and-suit assignments.

Equity Calc questions