实用工具

Card Odds

5-Card Poker Hand Odds (Standard Deck)

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是什么 Card Odds?

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A card odds calculator computes probabilities for card games including poker hand odds, blackjack bust probability, and the chance of drawing specific cards from a shuffled deck.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

公式

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f(x)Odds of drawing specific card = quantity in deck / remaining cards; Probability = odds / (odds + 1)

变量说明

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符号	名称	单位	描述
p	Probability of card	%	—
n	Number of target cards	count	—
N	Total cards remaining	count	—

如何 Card Odds

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1Probability = Favourable outcomes / Total remaining cards
2Poker: P(royal flush) = 4/2,598,960 ≈ 0.000154%
3Hypergeometric distribution for drawing without replacement
4Pot odds: compare call cost to pot size to decide profitability

例题解析

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示例 1

已知:Probability of drawing an ace from a full 52-card deck

结果:4/52 = 1/13 ≈ 7.69%

实际应用

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Poker hand strategy and pot odds

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Blackjack card counting

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Magic trick success prediction

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Board game design

Poker Hand Probabilities

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Hand	Combinations	Probability
Royal flush	4	0.000154%
Straight flush	36	0.00139%
Four of a kind	624	0.024%
Full house	3,744	0.144%
Flush	5,108	0.197%
Straight	10,200	0.392%

常见问题

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How many cards of each rank in a standard deck?

52 cards total: 4 of each rank (A-K) in 4 suits. 13 ranks.

What's the probability of drawing an ace?

First card: 4/52 = 7.69%. Changes after each draw as deck reduces.

Are these odds used in poker strategy?

Yes. Pot odds, hand odds, and equity calculations drive poker decision-making.

参考资料

›Poker probabilities — Wikipedia

Formula-verified for precision

Reviewed October 2026

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