What’s in the deck
Everything you need to ship a poker brain.
Hand evaluation
Rank 5- and 7-card hands, compare equities, and resolve showdowns in microseconds.
ExploreMonte Carlo equity
Run hundreds of thousands of trials to estimate win, tie, and lose probabilities.
ExplorePot & EV math
Pot odds, expected value, implied odds — turn the math into your edge.
ExploreICM & strategy
ICM (Harville and Weitzman), decideAction bots, Chubukov jam study helpers, and preflop equity matrices.
Explore30-second sample
From cards to expected value in three lines.
Compose a hero range against a board, run a fast Monte Carlo, and feed the result straight into decideAction.
// Equity vs. random villain on the flop
const poker = require('poker-calculations');
const equity = poker.simulateHandOutcome(
['As', 'Ks'],
['Qd', 'Jh', '2c'],
50_000,
42,
);
// → 0.71 (estimated win rate)Reference
API by category.
Hands & Equity
16 functions
Monte Carlo
21 functions
Strategy
14 functions
Pot & EV
21 functions
Stacks & Display
17 functions
Heuristics & Draws
32 functions
Reverse Implied
4 functions
Statistics & Risk
12 functions
Kelly & Jam
10 functions
GTO Frequencies
7 functions
Sizing & Commitment
21 functions
Fold Equity
13 functions
Multiway
5 functions
ICM
12 functions
Side Pots
6 functions
Tournament ICM
10 functions
Exact Runouts
21 functions
Subgame & Ranges
12 functions
Range Tools
20 functions
Board Texture
16 functions
Opponent Modeling
10 functions