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Log Normal Distribution CDF Calculator

Calculates the log normal distribution cumulative distribution function.


Formula: normdist(ln(x0), mn, sd, 1)

See the Statistical Distributions Overview page for more statistical distribution calculators.

Example 1

Calculate the CDF for a location parameter μ = 1 and scale parameter σ = 0.5 and x = 2.


Value Keystrokes Display Description
2 x 2.0 Stores the x value.
1 μ 1.0 Stores the μ value.
.5 σ 0.50 Stores the σ value.
  cdf 0.2697 Calculates the cumulative distribution function.

Example 2, Inverse

These keystrokes assume the values from example 1.

Calculate the x value for a CDF of 0.5.

Value Keystrokes Display Description
.5 cdf 0.500 Stores the cdf value.
  x 2.718 Calculates the x (inverse) value.


Log Normal distribution - Wikipedia