RMS Value of a Complex Waveform

Select a waveform, adjust its amplitude and harmonic components, then calculate its RMS value.

Select Waveform

Fundamental Amplitude (V)

Frequency (Hz)

RMS Formula:

V_RMS = √[ (1/T) ∫₀^T v²(t) dt ]

For a complex waveform, the instantaneous voltage is squared, averaged over one complete cycle, and the square root of the average gives the RMS value.

Calculated RMS Voltage

— V RMS

Select a waveform and press Calculate RMS.

Virtual Oscilloscope

Instantaneous Voltage

Peak: — V

Minimum: — V

Waveform

—

Frequency: — Hz

RMS Meaning

RMS is the equivalent DC voltage that would produce the same heating effect in a resistive load.