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Probability Calculator

Calculate probabilities for single and multiple events with fractions, decimals, and percentages.

Input Mode

P(A)

P(B)

P(A and B)

P(A)

0.5000

50.0%

P(B)

0.3000

30.0%

P(A ∪ B)

0.6500

65.0%

P(A ∩ B)

0.1500

15.0%

P(not A)

0.5000

50.0%

P(not B)

0.7000

70.0%

P(A|B)

0.5000

50.0%

P(B|A)

0.3000

30.0%