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Percentile to Z-Score Calculator
by Jeff Sauro | December 4, 2007 :: 56 Related Questions
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Enter the area under the normal curve (a proportion between 0 & 1) and get the Z-critical value, one-sided or two-sided. See also the interactive Graph of the Standard Normal Curve

Proportion of AreaZ-Score


To convert a Z-Score into a percentage use the Z-Score to Percentile Calculator

A Note about the Calculations & Decimal Precision
The values presented in the graphs above are approximations derived from the work of Abramowitz & Stegun. If you need precision to more that 3 decimals you are encouraged to consult multiple published tables of Z-Values.



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Related Questions

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