Calculate probabilities for the normal (Gaussian) distribution. Find the probability that a value falls below, above, or between two points in a normal distribution curve.
Calculate probabilities for the normal (Gaussian) distribution. Find the probability that a value falls below, above, or between two points in a normal distribution curve.
Enter the mean of the distribution
Enter the standard deviation
Enter the value to evaluate
The normal distribution probability is calculated using the cumulative distribution function (CDF). The z-score standardizes the value, and the CDF lookup gives the probability.
How this calculator works
The normal distribution probability is calculated using the cumulative distribution function (CDF). The z-score standardizes the value, and the CDF lookup gives the probability.
Common questions about this calculator
