The Zscore calculator is used to compute the Zscore by taking inputs of row score, population mean, and standard deviation.
Follow these simple steps below:
The Zscore defines the difference between the data points of raw scores from the mean value. You can get the number of standard deviations of a data point above the mean value. It's also known as the Standard Score, Normal Score, or Zvalue.
The formula to calculate the Zscore is:
Z = 

Here,
Z = Zscore,
x = Raw Score,
μ = Mean,
σ = Standard Deviation.
Let's take an example.
Calculate the zscore for the following values:
Raw score, x = 20,
Mean, μ = 15,
Standard Deviation, σ = 5.
Let's put the above values in the formula and evaluate it.
Z = 

= 

= 

= 1
Finally, the Zscore = 1.