ElectricianCalc NEC Calculator

The electrical calculator that gives you NEC-compliant numbers in seconds — voltage drop, wire size, conduit fill, ampacity, box fill — all offline. Stop flipping through the codebook on a ladder. ElectricianCalc gives you the wire size, voltage drop, conduit fill, and ampacity numbers an inspector signs off on — all referenced to current NEC tables, all available offline. WHAT'S INSIDE • Wire Size — by ampacity and length, with VD correction • Voltage Drop — single-phase, 3-phase, DC; AWG and metric • Conduit Fill — EMT, IMC, RMC, PVC; per NEC Chapter 9 • Ampacity — THHN, NM, MC, SE; by ambient and bundling • Ohm's Law — V/I/R/P with unit toggling • Power / kVA — three phase, line/phase voltage, power factor • Motor FLA + OCPD — full-load amps and overcurrent protection per NEC 430 • Box Fill — NEC 314.16 by conductor count and size • Service Calc — load calc preview for residential WHO IT'S FOR Licensed electricians, apprentices studying for the journeyman exam, inspectors, controls techs, low-voltage installers, hobbyists doing serious DIY. FREE vs PRO Free forever: voltage drop, wire size, ohm's law, conduit fill basics. Pro unlocks ampacity correction tables, full NEC reference, motor FLA + OCPD, box fill, service calc. One-time or subscription. Subscriptions auto-renew until cancelled. Manage in your Apple ID Subscription Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://doublevision.company/privacy NEC REFERENCES ARE INFORMATIONAL. The user is responsible for verifying against the current Code adopted by their AHJ. OFFLINE. NO ACCOUNT. NO ADS. ElectricianCalc works in basements, attics, and metal-frame buildings where signal dies. Everything runs locally.