Best Electrical Code Apps

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Mike Holt's Electrical Toolbox

Electrical Power Calculator

Conductor sizingVoltage drop limitationsCircuit protection sizing

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Ugly's Electrical References

(197)

free

by Informed Publishing

$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos

📊 Productivity

(1.5K)

Master Electrician Ref. Lite

A handbook for electricians

Motor and wiring informationAmpacity tablesConduit fill and grounding sizes

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

📊 Productivity

(2.4K)

Electrician's Sidekick

by IDEAL INDUSTRIES, INC

Conduit bending calculatorWire sizing and voltage drop calculatorConduit fill calculator

This free tool consolidates essential electrical calculations and reference guides into a single app. It offers precise tools for conduit bending, wire sizing, voltage drop, and conduit fill, designed to enhance fieldwork efficiency and accuracy for professionals. The app functions offline, ensuring constant access to critical information.

8000+ Questions & Explanations

8000+ exam-style questions20 NEC calculatorsQuick reference guide

Prepare for electrician certification exams with over 8,000 practice questions and detailed explanations. Access a comprehensive quick reference guide and 20 professional NEC calculators for on-the-job use. Track work hours with a built-in log for state board submissions.

📚 Education

(150)

#1 AI Tool for Skilled Trades

Code Buddy

AI-powered code queryingReal-time translationUp-to-date code libraries (NEC, OSHA, ANSI)

This AI-powered tool helps skilled tradesmen quickly find and understand electrical codes and requirements. It offers real-time translation and up-to-date references for various standards, assisting with compliance and efficiency on the job.

by Creature Code Mobile, LLC

Ohm's Law calculationsVoltage calculationCurrent calculation

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

(165)

Wire Color Codes - Ohmlify

Voltage Drop & Wire Calculator

Southwire® Conduit Fill Calc

(0)

by Southwire Company

Conduit size calculationNEC fill percentagesJam probability

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

NEC Electrical Exam by Dakota

(746)

free

NEC Practice Test Questions

Over 3000 exam questionsAI tutor for step-by-step helpPractice specific exam topics

Prepare for your electrical licensing exams with a vast library of practice questions, detailed explanations, and AI-powered assistance. Track your progress and identify weak areas to study more effectively for Journeyman, Master Electrician, and Contractor exams.

📚 Education

(372)

Master Electrician - Code AI

AI Code Lookup & Calculators

AI-powered code question answeringElectrical installation compliance scanningProfessional electrical calculators

This app acts as an AI-powered code expert for electricians, providing instant, cited answers to code questions and analyzing electrical installations for compliance. It includes a suite of essential calculators and a quick reference library for on-the-job use.

(1)

Captain Code NEC Code Changes

Guide from 2023 - 2014

Searchable by market vertical, product, or article numberDirect NEC text extractionExpert analysis from IAEI

This app provides electrical professionals with up-to-date National Electrical Code information. It offers searchable access to code changes, expert analysis, and manufacturer insights, complete with illustrations to aid comprehension.

Journeyman Electrician (2025)

(5)

ad-supported

Master NEC Exam Practice Test

Extensive practice questionsFull-length mock testsTest history tracking

Prepare for your journeyman electrician certification exam with practice tests and mock exams covering electrical theory and the National Electrical Code. Track your progress with test history and bookmark important questions for later review.

📚 Education

(278)

Electrician Handbook — Basics

Electric circuit, voltage, ohm

Electrical theory topicsInteractive circuit diagramsCalculators and formulas

$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

NEC Code CalculationsWire SizingVoltage Drop

(965)

free

Electrical Calc Elite

NEC Code Calculator

$19.99

This app serves as a comprehensive NEC code calculator for electrical professionals. It helps electricians, contractors, and inspectors quickly and accurately solve common electrical calculations based on National Electric Codes, with support for multiple code versions and in-app purchases for updates.

(124)

US conductor color code lookupSingle phase system supportThree phase system support

Electric Color Code

by DAE J MYUNG

$0.99

This app helps electricians and construction workers quickly identify the color codes for electrical conductors in US single or three-phase systems. It's a straightforward tool designed for efficiency on the job.

📊 Productivity

(19)