THD (Total Harmonic Distortion) Calculator

Calculate total harmonic distortion for audio and power systems.

Signal Amplitudes (Vrms)

Fundamental (V1)

Main frequency amplitude

2nd Harmonic (V2)

3rd Harmonic (V3)

4th Harmonic (V4)

5th Harmonic (V5)

Distortion Analysis

THD1.1402%-38.86 dB

Signal QualityAudible Dist

Overview

THD measures signal distortion from harmonics. Lower THD = cleaner signal. Essential for audio equipment and power quality analysis.

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Pro Tips

Fun Facts

Formula: THD = √(V2² + V3² + ... + Vn²) / V1 × 100%

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