How does this poker odds calculator work?

The calculator runs a Monte Carlo simulation of 10,000 hands. For each simulation, your opponent receives two random cards from the remaining deck, and the community cards are completed randomly. The win, tie, and loss percentages reflect how often each outcome occurs across all simulations.

What does 'tie' mean in poker odds?

A tie (also called a chop) occurs when both players make the exact same best 5-card hand from the 7 available cards, and the pot is split equally. This is most common with shared community cards that dominate both players' hole cards.

Why do my odds change dramatically from pre-flop to post-flop?

Pre-flop, many hands are close in equity (e.g., 60/40 or 55/45). Once the flop is revealed, you know 5 of the 7 cards that determine the winner, so equity shifts dramatically — made hands jump above 80% while drawing hands drop to their direct outs percentage.

Does this calculator work for Omaha poker?

No — this calculator is designed for Texas Hold'em (2 hole cards, up to 5 community cards). Omaha requires 4 hole cards and different hand evaluation rules.

Poker Odds Calculator

Enter your hole cards and board cards to see your exact win probability against a random opponent — updated in real time via Monte Carlo simulation.

May 24, 2026 2 min read

Enter your hole cards below and optionally add board cards to calculate your exact win probability. Leave board cards blank for pre-flop odds.

Your Hole Cards

Board Cards (optional — leave blank for pre-flop)

Simulating 10,000 hands…

Win 0%

Tie 0%

Loss 0%

Results based on 10,000 simulated heads-up hands vs. a random opponent using Texas Hold'em rules.

How to Read Poker Odds

The calculator shows three numbers:

Win % — how often your hand beats the opponent outright
Tie % — how often the pot splits (both players tie)
Loss % — how often the opponent wins

Your equity is Win% + (Tie% ÷ 2). For example, if you win 60% and tie 4%, your equity is 62%.

Key Odds to Know by Situation

Pre-Flop Favorites

Your Hand	Opponent	Win %
Pocket Aces (AA)	Random hand	~85%
Pocket Kings (KK)	Random hand	~82%
Any pocket pair	Two overcards	~55%
Two overcards	Pocket pair	~45%
Suited connectors (9♠8♠)	Two high cards	~40–45%

Drawing Odds (Post-Flop)

Draw	Outs	% to hit by river
Open-ended straight draw	8	~32%
Flush draw	9	~35%
Gutshot straight draw	4	~17%
Two overcards	6	~24%

The quick approximation for drawing odds: outs × 2 = % to hit on next card, outs × 4 = % to hit by river (when on the flop with two cards to come).

When to Use Pot Odds

Knowing your win % isn’t enough — you also need to compare it to the pot odds you’re getting.

Pot odds formula: Pot size ÷ (Pot size + Call amount) = % equity needed to call profitably.

Example: The pot is $80 and your opponent bets $20 (total pot becomes $100). You need to call $20, so you’re getting 100:20 = 5:1 odds, meaning you need 20% equity to break even. If your flush draw gives you 35% equity, calling is profitable.

FAQs

How does this calculator work?
It runs 10,000 Monte Carlo simulations — for each, random opponent cards and remaining community cards are generated, and both hands are evaluated to determine the winner.

Can I calculate pre-flop odds?
Yes — leave all board card fields blank to get pre-flop win probability.

What is equity in poker?
Equity is your expected share of the pot based on win probability. Win% + (Tie% ÷ 2) = your equity. Making decisions based on pot odds vs. equity is the foundation of solid poker strategy.

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