Poker Crunch

Poker Crunch is a Texas Hold'em equity calculator. Tell it what hands your opponents may have, and it calculates your odds of winning at the showdown if no one folds.

To calculate equity, there are no buttons to click and no settings to adjust. Just type in the hands and it instantly calculates the results. We designed Poker Crunch from the ground up to save you time. Change the hands and it automatically recalculates. Poker Crunch isn't just fast at crunching numbers, but it has a simple, elegant design with a small screen footprint.

Poker Crunch integrates with Poker Notes and Poker Bar. With the click of a button, Poker Crunch will automatically load the details from the hand you just played, including the board cards, known hole cards, and when each player folded.

Hand ranges

Poker Crunch accepts ranges of hands as inputs, which is perfect when you're not sure what cards your opponents may have. Poker Crunch accepts a wide variety of input, making it easy to specify a range of hands. For example:

Ad2d: specifically A♦2♦
JJ+: a pair Jacks or a better pair
AdA: any pair of aces that contains the A♦
T8s-QJs: T8s, T9s, J9s, JTs, QTs, or QJs
6h5h-QhJh: 6♥5♥, 7♥6♥, 8♥7♥, 9♥8♥, T♥9♥, J♥T♥, or Q♥J♥
20%: The top 20% of all starting hands

Accurate

Poker Crunch uses Monte Carlo simulations to calculate a highly accurate approximation of each player's true equity. Poker Crunch automatically chooses an appropriate number of simulations. Based on theorems from statistical theory, the graph below explores the probability of an error. The x axis shows the size of an error, and the y axis shows the probability of an error less than that magnitude. For example, the error will be less than half a percentage point 85% of the time.

The probability of an error of more than 1 percentage point is quite small—less than half a percent. The probability of Poker Crunch having an error of more than 2 percentage points is around one in 12.5 million. That's less likely than being struck by lightning.

We don't simply rely on Monte Carlo theory to ensure the accuracy of Poker Crunch: we also test it. The Poker Crunch automated tests run the same input hundreds of times to verify that the results have the expected accuracy. View some of our test results.

Some other Monte Carlo poker calculators give inaccurate answers in a few cases when players have similar holdings. One of the hardest cases we've found for Monte Carlo is: “AA” vs. “2c2d,A2” vs. “AA,2c2d”. The correct equities are 75%, 9%, and 16%, respectively.

The fastest poker calculator

Poker Crunch is fast. Equity results appear as you type. You'll never need to wait.

We designed Poker Crunch from the ground up to be the fastest poker calculator available. Each time we make a change to Poker Crunch's Monte Carlo engine, we run it through our accuracy tests. If it passes the accuracy tests, we run it through a battery of speed tests and compare the results with earlier versions and with competing poker calculators. Our speed tests include a wide variety of scenarios, including:

Tests with 2 to 10 players
Tests with and without board cards
Tests with very loose players
Tests with very tight players
Tests where players have heavily overlapping card ranges
Tests where players have independent card ranges

Here's a small sample of our timing results, listing the simulated games per second (higher is better) for Poker Crunch and Poker Stove 1.21. The final column lists the ratio of the two speeds (e.g., a ratio of 2 means Poker Crunch is twice as fast).

Players	Cards	Poker Crunch	Poker Stove 1.21	Crunch/Stove
2 Loose	Independent	2,433,978	1,595,185	1.53
10 Loose	Independent	2,900,653	394,462	7.35
2 Tight	Overlapping	1,428,571	1,175,978	1.21
10 Tight	Overlapping	446,359	74,176	6.02
2 Tight	Independent	1,830,329	1,788,730	1.02
10 Tight	Independent	1,147,776	558,876	2.05

Timing tests conducted on an Intel T7200 processor

Useful error messages

When Poker Crunch can't understand your input, it provides useful error messages. For example, suppose you enter “A2+, K2+, QJJ, 22+”. Poker Crunch will let you know “QJJ: invalid character ‘J’. Must be ‘s’ or ‘o’”. No need to guess what Poker Crunch can't understand; it tells you.

Copy to clipboard

Poker Crunch includes a “To Clipboard” feature that generates BBCode suitable for posting results to many online forums. Simply paste the code into your post and an image will be generated like the one below.

Weighted hands

For example, suppose you know UTG will limp with medium pairs (55-88), several suited connectors (76s-QJs), and with a third of his pocket aces and kings. He limps, MP limps with any ace, king, or pair. You raise with the red tens, the blinds fold, and the flop comes J♣Q♠2♦:

By putting a percentage in parenthesis after a range (KK+ (33%)), you can tell Poker Crunch that the range would only be played a fraction of the time.

Poker equity charts

Poker Crunch equity charts provide additional hand equity details. Each chart shows how frequently that hand will have a certain equity on the next street. For example, the “Equity Distribution on random flops” shows you how often a pre-flop hand will hit the flop and how hard. For example, suppose you want to know how Ace–King suited (AKs) will fair on the flop against pair of tens (TT) and a pair of fives (55). Simply click “Chart” and Poker Crunch produces the following chart. Learn more.