// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
sci.total-harmonic-distortion-THD Calculator
Calculates total harmonic distortion THD-F = √(Σ Vₙ²)/V₁ and THD-R = √(Σ Vₙ²)/V_total from harmonic voltage spectrum. Audio amplifier THD < 0.1% at rated power is high quality — power electronics generate harmonics that require 3rd, 5th, 7th order filters per IEEE 519.
Inputs
V1 V
Reference formula or conversion factor shown for context.
V3 V
Reference formula or conversion factor shown for context.
V5 V
Reference formula or conversion factor shown for context.
V7 V
Reference formula or conversion factor shown for context.
V11 V
Reference formula or conversion factor shown for context.
Results
THD (V) (%)
Reference formula or conversion factor shown for context.
total RMS voltage (V)
Electric potential difference between the two terminals (V). In AC systems, quoted as RMS — 230 V mains has a peak of ~325 V.
harmonic RMS component (V)
Sample size or count used in the calculation.
total power factor (distortion)
A dimensionless multiplier applied in the calculation.
THD = √(V₃²+V₅²+V₇²+…) / V₁ × 100%
Reference formula or conversion factor shown for context.