What you provide
What you provide
- Standard score, using the same scenario as the other inputs
- The stated equation, unit convention, and modelling assumption must fit your intended use
MATH / PROBABILITY DISTRIBUTIONS
Standard Normal Density Calculator
Evaluate the standard normal probability density at a chosen z score. Review the equation, substituted values, result, assumptions, and interpretation in one focused workspace.
- 01 Calculated in this tab
- 02 Values stay in this browser tab
- 03 Use boundary
Use boundary
Calculation path
Evaluate the standard normal probability density at a chosen z score. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
Calculation path
phi(z)=exp(-z^2/2)/sqrt(2pi)
What you receive
What you receive
- Density phi(z) from the stated equation
- A symbolic formula plus substituted working with your values
- Visible assumptions, field guidance, and an authoritative learning reference
Use boundary
Choose the maximum decimal places shown. This does not increase source accuracy.
This is a density value, not the probability at one exact point.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors