免费扑克胜率计算器
通过蒙特卡洛模拟计算胜率，并提供 AI 建议。
Quick answer
What is a poker odds calculator?
A poker odds calculator computes equity — your probability of winning a hand — by simulating thousands of random outcomes for the remaining cards. Enter your hole cards, any known board cards, and the player count; it returns your win percentage, outs, and best current hand, ready to compare against the pot odds you're offered.
Powered by Monte Carlo simulation — see the calculator below.
Playing Omaha? Use the dedicated PLO odds calculator (4, 5 & 6 card).
可选：添加翻牌/转牌/河牌
还需选择 2 张手牌
选择你的手牌以查看概率
选择牌以查看基于规则的建议
免责声明：此计算器仅用于教育与娱乐目的。赌博存在风险，请勿下注超过你可承受的损失范围。我们不对使用该工具或其建议导致的任何财务损失负责。历史表现和统计概率不保证未来结果。请理性博彩。
如何使用扑克胜率计算器
选择手牌、公共牌和玩家人数来模拟胜率。
- 选择两张手牌
- 如已知，加入翻牌/转牌/河牌
- 选择桌上玩家数量
- 运行模拟查看胜/平/负概率
- 参考 AI 建议
胜率说明
胜率
在当前牌面下获胜的概率。
Outs
未来可提升牌力的牌。
最佳牌型
当前你的最强成手牌。
AI 建议
根据胜率和人数给出动作建议。
Worked Example: Calculating a Flush Draw's Equity
Say you hold A♠K♠ and the flop comes Q♠J♠ 2♦. You have two spades in your hand and two more on the board — a flush draw, plus two overcards.
There are 13 spades in the deck. Four are already visible (your two, plus the two on the flop), leaving 9 unseen spades — your outs. Any of those 9 cards on the turn or river completes your flush.
Using the rule of 2 and 4: with two cards still to come (turn and river), multiply outs by 4 — 9 × 4 = 36%, close to the calculator's simulated ~35% for a flush draw. With only one card left to come, multiply by 2 instead — 9 × 2 = 18%, close to the ~19% figure in the cheat sheet above.
Now compare that to the price you're being offered. If an opponent bets $100 into a $100 pot, you must call $100 to win a $300 pot — you need 100 ÷ 400 = 25% equity to break even. With roughly 36% equity from the flush draw, calling is profitable on the math alone, before counting any extra value from hands you might win after making your flush (implied odds).
Common Preflop Matchups
These are widely-accepted approximate all-in equities for classic Texas Hold'em preflop confrontations, heads-up (two players, cards face up). Use them to build intuition before you check a specific hand in the calculator above.
| Matchup | Favorite | Underdog | Note |
|---|---|---|---|
| AA vs KK | ~82% | ~18% | The classic "cooler" — a big pair over a big pair. |
| AA vs AKs | ~88% | ~12% | Dominated: the aces block the ace outs; the suited K helps a little. |
| AK vs QQ | ~57% | ~43% | The classic near-coinflip: overcards vs a lower pair. |
| AKs vs 22 | ~50% | ~50% | "Race": overcards + suit vs a small pair is roughly even. |
| AK vs 72o | ~66% | ~34% | Two live overcards dominate the weakest starting hand. |
| KQ vs KJ | ~72% | ~28% | Shared king, better kicker: domination, not a coinflip. |
Equities are approximate and rounded, for heads-up all-in situations with no cards on the board. Exact numbers shift with suits and specific cards — run your own hand in the calculator for precise figures.
Poker Odds Cheat Sheet (Outs to Percentage)
A quick reference for turning your number of outs into a rough chance to improve, using the "rule of 2 and 4": multiply outs by 2 for one card to come (turn or river), and by 4 on the flop for both cards to come. It is an educational shortcut, not an exact figure.
| Draw | Outs | One card (×2) | Flop to river (×4) |
|---|---|---|---|
| Gutshot straight draw | 4 | ~8.5% | ~16.5% |
| Two overcards | 6 | ~13% | ~24% |
| Open-ended straight draw (OESD) | 8 | ~17% | ~31.5% |
| Flush draw | 9 | ~19% | ~35% |
| Flush draw + gutshot | 12 | ~26% | ~45% |
| OESD + flush draw (combo) | 15 | ~32% | ~54% |
Percentages are approximate rounded estimates from the rule of 2 and 4. Actual equity depends on live outs and the exact board — use the calculator above for precise numbers.
Poker Hand Checker: Check Any Hold'em Hand Online, Free
Use the tool above as a free online poker hand checker. Enter your two hole cards and any known community cards, and it instantly checks your best current hand, your equity, and your outs against the number of players you choose.
A hand checker is useful for studying spots away from the table: replay a hand you were unsure about, check how your equity changed from flop to turn to river, and compare it against the pot odds you were offered. Everything runs in your browser with no signup, so you can check as many hands as you like. Remember this is an educational math tool for learning probabilities — it does not predict outcomes or guarantee results.
Related Reading
How to Calculate Poker Odds: Outs, Equity, and the Rule of 2 and 4
A step-by-step breakdown of the math behind this calculator, with worked hands.
Poker Math Made Simple: Equity, Pot Odds, and How to Track Your EV
How equity and pot odds fit together, and how to track your results over time.
GTO Preflop Ranges Explained: Starting-Hand Charts
How to read a preflop range chart and use it alongside your hand equity.
相关免费工具
Frequently asked questions
▶How accurate is this poker odds calculator?
Our calculator uses Monte Carlo simulation with thousands of random runouts to estimate equity. Results are statistically accurate within 1-2% and match industry-standard poker odds calculators.
▶Is this poker odds calculator completely free?
Yes, this poker odds calculator is 100% free to use with no signup required. You can calculate Texas Hold'em equity, outs, and get AI action recommendations at no cost.
▶How do I calculate poker odds for my hand?
Select your two hole cards, optionally add community cards (flop, turn, river), choose the number of players, then click Calculate. The tool will show your win equity, outs, best hand, and AI-powered action suggestions.
▶What does poker equity mean?
Poker equity is your percentage chance of winning the pot at any given point in a hand. For example, if you have 60% equity, you would expect to win the pot 60% of the time if the hand were played to completion.
▶Can I use this calculator for Omaha or PLO?
This calculator is designed for Texas Hold'em. For Pot Limit Omaha (PLO-4, PLO-5, PLO-6), use our dedicated PLO Odds Calculator at managebankroll.com/tools/plo-calculator.
▶What is the difference between equity and pot odds?
Equity is your share of the pot based on your chance to win the hand. Pot odds are the price you are being offered to call, expressed as a ratio of the current pot to the amount you must call. As an educational rule of thumb, calling is mathematically break-even when your equity percentage is at least as high as the amount to call divided by the total pot after your call. This calculator shows your equity so you can compare it against the pot odds in front of you.
▶How many simulations does the calculator run, and how accurate is it?
Each calculation runs a Monte Carlo simulation over thousands of random runouts of the remaining cards. That sample size keeps the estimated equity within roughly 1-2% of the exact mathematical value for most spots, which is close enough to line up with dedicated poker odds software. Adding more known cards (flop, turn, river) makes the estimate tighter because fewer unknowns remain.
▶Is the poker hand checker free, and do I need to sign up?
Yes. The poker odds and hand checker are free to use with no account, download, or signup required. It runs entirely in your browser, so you can check a hand's equity and outs instantly. This is an educational math tool for studying probabilities, not a gambling service.
▶What is the rule of 2 and 4 in poker?
The rule of 2 and 4 is a quick way to turn your outs into an approximate percentage chance of improving your hand. With two cards still to come (the turn and river), multiply your outs by 4. With only one card to come, multiply by 2 instead. It's an estimate, not an exact figure — the calculator above runs a full simulation for a precise number.
▶What's the difference between poker equity and outs?
Outs are the specific unseen cards that would improve your hand — for example, 9 remaining spades complete a flush draw. Equity is the resulting percentage: your overall probability of winning the pot once all outs, opponent ranges, and future cards are accounted for. Outs are a raw card count; equity is the probability that count translates into.
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