Probability & Z-Score Calculator

Statistics Toolkit:
Calculate set probabilities (union, conditional) or convert between raw data, Z-scores, and percentiles using the Standard Normal Distribution.

Calculation Mode

Probability of Event A: P(A)

Probability of Event B: P(B)

Intersection: P(A ∩ B)

Probability & Z-Score Calculator

Probability Results

Formulas Used

Z-Score & Distribution

Calculation Details