Bayes’ Theorem Calculator

This calculator applies Bayes’ Theorem to determine the probability of an event occurring given prior knowledge of related conditions.

Probability of Event A (P(A))

Probability of Event B given A (P(B | A))

Probability of Event B (P(B))

P(A | B) = [ P(B | A) × P(A) ] / P(B)

Where:
P(A | B) = Probability of A given B
P(B | A) = Probability of B given A
P(A) = Probability of A
P(B) = Probability of B

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