Everyday tool
Z-Score and Percentile Calculator
Enter a value, the mean and a positive standard deviation.
Runs in your browser. No upload.
Values are processed locally in this browser.
Result
About this tool
Z-Score and Percentile Calculator made simple.
The percentile is an approximation under a normal-distribution assumption. It is not a percentile rank for a dataset unless that model is appropriate.
Common questions
About Z-Score and Percentile Calculator.
How do I use Z-score calculator?
Enter a value, the mean and a positive standard deviation.
Is my data uploaded to a server?
No. This tool runs locally in your browser. Your input is not uploaded.