RMS to Peak Calculator

Calculate Peak Value from RMS

Formula

The formula to calculate the Peak Value (PV) from RMS is:

\[ PV = RMS \times \sqrt{2} \]

Where:

What is RMS?

RMS stands for Root Mean Square. It is a statistical measure of the magnitude of a varying quantity and is used in physics and engineering to represent the effective value of an alternating current (AC) or voltage. RMS is a way to express an AC quantity of voltage or current in terms functionally equivalent to DC. This is useful because it allows for the calculation of power in an AC circuit, which is equivalent to the power in a DC circuit of the same RMS value.

Example Calculation

Consider an example where the RMS value is 120 volts:

Using the formula to calculate the Peak Value:

\[ PV = 120 \times \sqrt{2} \approx 169.71 \text{ V} \]

This means that the peak value for this example is approximately 169.71 volts.