The Root Mean Square Calculator is used to calculate the root mean square (quadratic mean) of a set of numbers.
In mathematics, the root mean square (abbreviated RMS or rms) is a statistical measure of the magnitude of a varying quantity. It is also known as the quadratic mean.
The Root Mean Square (RMS) value of a set of values is the square root of the arithmetic mean (average) of the squares of the original values.
In the case of a set of n values x1, x2, ... , xn, the RMS value is given by: