Root Mean Square (RMS) / Quadratic Mean (QM) Calculator

Find the Root Mean Square/Quadratic Mean of the given numbers.

E.g: 3,-2,12,4,-5



Root Mean Square is a kind of average used in statistics and engineering, it is abbreviated as RMS. To find the root mean square of a set of numbers we use following formula:

Root Mean Square(RMS) / Quadratic Mean (QM)

Sqrt((X1)2 + (X2)2 + (X3)2 +........+ (XN)2/N)


X = Individual score

N = Sample size (Number of scores)