Enter the total proportion of the area under the curve of any data set. The calculator will convert the are proportion of the area into the raw Z score.

## Area to Z Score Formula

The following table is used to calculate the z score from an area.

Proportion of Area (P-Value) | Z |

80% | 1.282 |

85% | 1.44 |

90% | 1.645 |

95% | 1.96 |

99% | 2.576 |

99.50% | 2.807 |

99.90% | 3.291 |

The proportion of the area under the curve is also known as the P-value. This can be represented as a decimal or a percentage. For example, in the table above, 80% would be equal to a decimal amount of .80.

Often times this p-value is also considered to be the confidence interval. That’s because a confidence interval is a percentage of a data set that you feel is accurate.

For the use of the calculator above, you must select the P-Value from the drop down menu, then hit calculate. The calculator will return the corresponding z-score.

## FAQ

**What is a z score?**

A z-score is a statistical value used to related a single value to the overall mean of a group of data.

**What is a p value?**

A p value is a proportion of the area, or proportion of a data set used in a statistical measurement.

## Related Terms

z score area calculator

find z score given area

standard normal distribution table calculator

normal distribution calculator z score

normal distribution table calculator

area to the left of z calculator

find the z value that corresponds to the given area

area between two z scores calculator

find z score given area calculator

statistics calculator z score

area of z score calculator

normal distribution z score formula

find area to the right of z score calculator

area between z scores calculator

find the area to the left of z

normal distribution z formula

area to the right of z calculator

find z score from area

find the area to the right of z

z table normal distribution calculator

z score calculator given area

z score distribution calculator

finding z score for a percentile

cumulative area to z score calculator

find z score from area calculator

area to the left of z score calculator

area between mean and z score calculator

cumulative standardized normal distribution table calculator

find area to the left of z score calculator

z score shaded area calculator

area to the right of z score calculator

find the area between two z scores calculator

z score formula normal distribution

find the area to the left of z calculator

find the z score that corresponds to an area

find area between two z scores calculator

area that lies between z scores calculator

z distribution table calculator

find area left of z score

find area from z score

z score on a calculator

find z score that corresponds to an area

the area to the right of z calculator

normal distribution z table calculator

find area given z score calculator

normal distribution z score probability calculator

area between two z values calculator

the area that lies between z calculator

z score that corresponds to an area calculator

percentile to z score calculator normal distribution

find z value that corresponds to the given area

lower z score boundary calculator

z calculator for normal distribution

cumulative standard normal distribution table calculator

normal distribution table online

normal distribution find z

calculate z normal distribution

z score table normal distribution calculator