Z-Score to Percentile Calculator
The percentile of a z-score on the standard normal distribution.
Result
Percentile (below)
84.13
Percent above
15.87
How it works
Percentile = Φ(z) × 100
A z-score’s percentile is the share of the normal distribution below it. A z of 0 is the 50th percentile; +1 is about the 84th.
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Frequently asked questions
What percentile is z = 1?
About the 84th percentile — 84% of values fall below it.
What does a negative z give?
A percentile below 50, since the value is below the mean.
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