Total Harmonic Distortion Calculator

Calculate THD from individual harmonic magnitudes for voltage and current waveform quality assessment.

RMS magnitude of the fundamental frequency.
A or V
RMS magnitude of 3rd harmonic.
A or V
RMS magnitude of 5th harmonic.
A or V
RMS magnitude of 7th harmonic.
A or V
RMS magnitude of 11th harmonic.
A or V

Results

Total Harmonic Distortion-%
True RMS Value-
Crest Factor-
IEEE 519 Assessment-
References: IEEE 519 — Harmonic Limits; IEC 61000-3-2