KLOORAZ-Score Calculator
Convert a value to a z-score and find its percentile on the normal curve.
Quick answer: Z-Score Calculator: Convert a value to a z-score and find its percentile on the normal curve. Everything runs in your browser, so nothing you enter is uploaded or stored.
How to use Z-Score Calculator
- Enter your values in the fields.
- The results update instantly as you type.
- Note or copy the numbers you need.
Features
- Instant results
- Free, no signup
- Runs in your browser, nothing is uploaded
- Works on phone and desktop
Frequently asked questions
What is a z-score?
It shows how many standard deviations a value is above or below the mean. z = (x - mean) / standard deviation.
What does the percentile mean?
It is the share of values in a normal distribution that fall below your value.
Is the Z-Score Calculator free?
Yes. It is free, needs no signup and works on any device.