Primary/secondary current and protection sizing

NEC 220 demand factor analysis for service sizing

Calculate capacitor bank kVAR for PF improvement

Calculate voltage, current, resistance, or power from any two known values

Real, apparent, and reactive power for DC, 1Ø, and 3Ø circuits

Convert horsepower to kilowatts with motor efficiency and current estimation

THD, true RMS, neutral current, and IEEE 519 compliance

Build load schedule with demand factors and service sizing per NEC 220

Calculate voltage drop and NEC/IEC compliance

Determine minimum conductor size per ampacity tables

Calculate raceway fill percentage per code

Convert between AWG wire sizes and metric mm² areas with IEC mapping

Calculate pulling tension, bend factors, and sidewall pressure per NEC Ch.9

Cable tray fill compliance per NEC 392 for ladder/ventilated/solid trays

Conduit fill per NEC Chapter 9 Tables 1, 4, and 5

FLC, protection sizing, and overload per NEC 430

Point-to-point fault current calculation

GEC and EGC sizing per NEC Article 250

Size circuit breakers per NEC continuous load and next-size-up rules

Incident energy, hazard category, and PPE per IEEE 1584

Available fault current and minimum AIC rating per IEEE 141

Inrush current and VD analysis for DOL/Y-Δ/Soft/VFD methods per NEC 430

Fixture quantity and layout using zonal cavity method

Estimate electricity cost by usage hours, rates, and demand charges

Universal electrical unit converter: V, A, Ω, W, J, Hz, F, H

Size UPS with battery capacity, redundancy (N/N+1/2N), and heat output

Size solar PV: panel count, inverter rating, battery bank per NEC 690

Size battery banks with DOD, temperature derating, and common sizes