You can use this Z-Score Calculator to calculate the standard normal score (z-score) based on the raw score value, the population mean, and the standard deviation of the population.

**How to use the calculator**

- Enter the raw score value
- Enter the mean, standard deviation, and click the "Calculate" button to see the results.

## Z-Score Formula

The Z-Score Calculator uses the following formula:

*z = (x - μ) /
σ*

*Where:*

**z** is the standard score or Z-score,

**x** is the raw score to be standardized,

**μ** is the mean of the population,

**σ** is the standard deviation of the population.

**Z-Score Calculation Example: **The mean of a
dataset is 20 and the standard deviation is 7. Find the z-score for a value of 6.

x = 6, μ = 20, σ = 7

z = (6 - 20) / 7

z = -14 / 7 = -2

z = -2

You can use this Z-Score Calculator to calculate the standard normal score (z-score) based on the raw score value, the population mean, and the standard deviation of the population.

**How to use the calculator**

- Enter the raw score value
- Enter the mean, standard deviation, and click the "Calculate" button to see the results.

## Z-Score Formula

The Z-Score Calculator uses the following formula:

*z = (x - μ) /
σ*

*Where:*

**z** is the standard score or Z-score,

**x** is the raw score to be standardized,

**μ** is the mean of the population,

**σ** is the standard deviation of the population.

**Z-Score Calculation Example: **The mean of a
dataset is 20 and the standard deviation is 7. Find the z-score for a value of 6.

x = 6, μ = 20, σ = 7

z = (6 - 20) / 7

z = -14 / 7 = -2

z = -2