How the odds calculator works

Pick a game, tap cards into each player's hand, and the equity updates by itself — win and tie percentages for every hand. Add a flop, turn or river to see how the board changes things, and mark dead cards to take them out of the deck. An empty seat plays a random hand, so "aces against a random hand" is one tap away.

Omaha, done by the rules

In Omaha you must use exactly two hole cards and exactly three board cards — a board flush without two of that suit in your hand is no flush at all. The calculator enforces this for both 4-card and 5-card Omaha, which is where most quick calculators (and most players) go wrong.

Exact odds when possible, Monte Carlo when not

On the flop, turn and river with all hands known, every remaining runout is enumerated — the numbers are exact, not estimates. Preflop and with unknown cards it switches to Monte Carlo simulation and tells you the sample size and margin. Everything runs locally in your browser: no signup, no server, no limits.

Cardplayer is built by Pebel, the marketplace where poker players sell action and backers buy it. The embedded version lives inside pebel.app.