RMS Average Calculator

The Root mean square (RMS) average of a set of values is the square root of the arithmetic mean of the squares of the values.

The formula for this is

xRMS = √(1/n)(x12 + x22 + … + xn2)

Use the calculator below to calculate the RMS average.

Enter the numbers x1, x2, x3, … each separated by a comma.

Example Calculation

The RMS average of two numbers 1 and 4 is 2.915