RMS voltage

The root mean square (RMS) voltage is the square root of the mean square.

Formulas

The RMS voltage can be calculated with one of the following formulas:

We can also calculate the peak voltage, peak-to-peak voltage, and average voltage if we know the RMS voltage:

V RMS is the symbol for RMS voltage and is measured in volt (V).
V pk is the symbol for peak voltage and is measured in volt (V).
V pp is the symbol for peak-to-peak voltage and is measured in volt (V).
V avg is the symbol for average voltage and is measured in volt (V).

RMS voltage

Calculator

You can use the following calculator to calculate the root mean square voltage, peak voltage, peak-to-peak voltage and average voltage. You only have to enter one value.