Normal Distribution Calculator

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Enter the mean and standard deviation for the distribution. Enter the chosen values of x1 and, if required, x2 then press Calculate to calculate the probability that a value chosen at random from the distribution is greater than or less than x1 or x2, or lies between x1 and x2.


μ Mean
σ Standard Deviation
X1
X2
 
 
P(X < X1)       probability x is less than x1
P(X > X1)       probability x is greater than x1
P(X < X2)       probability x is less than x2
P(X > X2)       probability x is greater than x2
P(X1 < X < X2)       probability x lies between x1 and x2
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This page was last changed on: 02 August 2021.

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