
Calcular.tools
Standard Deviation Calculator
Enter a set of numbers to calculate standard deviation and other statistical measures.
Understanding Standard Deviation
A guide to what the numbers from our standard deviation calculator mean.
Standard deviation is a measure of how spread out the numbers in a data set are from their average (or mean). A low standard deviation means the numbers are very close to the average, while a high standard deviation means the numbers are spread out over a wider range.
Essentially, a standard dev calculator tells you how much "variety" or "dispersion" exists in your data.