How is equity calculated?

The tool uses a Monte Carlo simulation: it randomly deals the remaining unknown cards thousands of times and counts how often your hand wins or ties. The result converges quickly to accurate probabilities.

What does "outs" mean?

Outs are the number of unseen cards in the deck that would improve your hand. A flush draw has 9 outs; an open-ended straight draw has 8. Multiply outs by 2 for the turn probability and by 4 for turn+river combined (the Rule of 4).

Why does equity change so much on the flop vs. the river?

With more community cards revealed, fewer unknown cards remain, so probabilities become more precise. A coin-flip pre-flop can become a near-certain win or loss by the river.

Does this support Omaha or other variants?

This calculator is designed for Texas Hold'em (2 hole cards, up to 5 community cards). Omaha uses 4 hole cards and different hand-selection rules, so results would not apply.

How accurate is the Monte Carlo estimate?

The simulation runs 10,000 random trials, giving accuracy within about 1 percentage point. For exact combinatorial results (especially pre-flop), the tool also shows exact hand category probabilities.

Poker Odds Calculator

Select your hole cards and any community cards to instantly calculate your hand strength and win probability in Texas Hold'em.

Your Hole Cards (pick 2)

Community Cards (pick 0–5)

Pick Cards

Selecting: Hole card 1

Selected cards are grayed out. Click a selected card in your hand to remove it.

Summary

The Poker Odds Calculator lets you select any hole cards and community cards from a standard 52-card deck and immediately see your hand strength and equity percentage. It uses a 10,000-trial Monte Carlo simulation to estimate your probability of winning, tying, or losing against a random opponent hand, making it ideal for studying equity and pre-flop matchups.

How it works

Click two cards from the deck to set your hole cards.
Optionally click up to five community cards (flop, turn, river) to represent the board.
The tool instantly calculates your current hand strength and equity.
Click "Reset" to start over with a new hand.

Use cases

Calculate your pot odds vs. hand equity to decide whether to call or fold.
Learn how often a flush or straight draw hits by the river.
Study pre-flop equity matchups between common poker hands.
Understand the probability of hitting a set when holding a pocket pair.
Review hand histories to see if a call was statistically correct.
Practice poker math without a real table.
Compare two starting hands to see which dominates pre-flop.
Estimate river equity in all-in scenarios.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu