Normal Distribution Calculator

Calculate Normal Distribution probabilities and confidence intervals with ease!

Use this app to calculate the area under a Normal/Gaussian curve (the probability). Just input a Z-score! Also allows users to input different means and standard deviations. Includes options for finding probabilities using one-tail, two-tail and even custom z-scores.

Can also be used to calculate confidence intervals! Just input the probability / significance level and get the confidence interval easily. Also allows user inputted means and standard deviations as well as tail options.