Z Score Calculator is a free online tool that displays the standard normal score. CoolGyan online Z score calculator tool makes the calculation faster, and it displays the Z score value in a fraction of seconds.

## How to Use the Z Score Calculator?

The procedure to use the Z score calculator is as follows:

**Step 1:** Enter the random variable, mean and standard deviation in the respective input field

**Step 2:** Now click the button ”Calculate” to get the result

**Step 3:** Finally, the Z score value will be displayed in the output field

### What is Meant by the Z Score?

In Statistics, Z-score is also known as the standard normal score which gives information about how many standard deviations are away from the mean. Generally, the positive Z score represents the raw score which is higher than the average mean. Similarly, the negative Z-score represents the raw score which is below the average mean. For example, if the standard normal score is equal to +1, it means that the one standard deviation is above the mean.