Best Electrical Load Calculation Tool Apps

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.

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NEC Art.220 Residential Load

Electrical Load Calc NEC

$0.99

Calculate residential electrical service sizes accurately using NEC standards. This tool provides step-by-step breakdowns, references official articles, and supports multiple NEC editions for electricians and engineers.

NEC 220.82 Optional Method calculationsSupport for NEC 2023 and NEC 2026Step-by-step breakdown with article references

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Electrical calculation

Electrical Engineering

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Electrical Formulator

by Historycentral.com

Over 100 electrical formulasSave and organize resultsShare results via email or print

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

Dakota's Electrical Calculator

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freemium

Voltage Drop, Conduit & Wire

On-the-job hour tracking by areaNEC-aligned circuit calculationsBranch, feeder, and service load calculations

This app provides electricians and apprentices with essential tools for on-the-job tracking and NEC-aligned calculations. It helps with circuit analysis, load calculations, conduit fill, motor and transformer computations, and voltage drop assessments for field use and exam preparation.

📚 Education

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Electrical Toolkit by HCP

Conduit + load calcs for pros

Conduit bending calculationsNEC-compliant conduit fillResidential load calculations

This comprehensive mobile toolkit provides electricians and professionals with essential calculations, NEC-compliant tools, and field utilities. It offers features for conduit bending, fill calculations, load analysis, and various electrical calculators, all designed for speed and clarity.

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Electrical Layout Designer

NEC Plans Drawings & Load Calc

$5.99

Design professional, code-compliant electrical layouts on your mobile device. Import floor plans, place symbols, generate NEC load calculations, and create panel schedules. This app is an all-in-one electrical design studio for on-the-go professionals.

Import PDF floor plansPlace 79+ electrical symbolsGenerate NEC load calculations

Electrical Systems Pro Suite

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paid

NEC Design, Workflow Lab Tools

Residential NEC load calculation wizardCommercial electrical drawings and calculatorsProject management workflow

This professional toolkit offers four distinct modules for electrical engineers, designers, and students. It provides tools for residential and commercial electrical design, project workflow management, and visual learning, with individual module purchases or a bundled discount.

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Residential, Commercial, Panel

NEC Load Calculator

NEC 2023 load calculationsResidential, commercial, motor, branch circuit modulesPanel schedule editor

This app performs electrical load calculations based on the NEC 2023 code. It offers modules for residential, commercial, motor, and branch circuit calculations, along with panel scheduling and PDF export. Designed for licensed electricians and contractors.

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Electrical Design Residential

Residential Electrical Toolkit

Electrician Handy Tool

All in one electricians tools

Voltage drop calculatorConduit bending calculatorFraction calculator

This app provides electricians with essential tools for conduit bending, calculations, and quick reference. It simplifies electrical work with features like voltage drop calculation and a user-friendly fraction calculator.

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Commercial Electrical Designer

NEC Reference & Calculators

AI Electrical Assistant

AI-powered Q&A for electrical workProfessional-grade electrical calculatorsInstant NEC code reference

This AI-powered assistant provides instant, accurate answers for electrical work, including troubleshooting, wire sizing, and NEC code references. It offers professional-grade calculators and works offline, making it an indispensable tool for electricians and DIYers.

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Electrical Wiring Pro 2014+

by Intineo LLC

Ampacity and wire sizingBox fill and wire bending spaceConduit fill calculations

This app provides electricians and electrical professionals with over 30 calculation tools for designing and documenting code-compliant installations. It supports multiple National Electrical Code versions and offers features for ampacity, wire sizing, box fill, conduit fill, bending, and load calculations.

HVAC cooling and heating loads

$24.99

Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.

Detailed heating and cooling load calculations1000+ city weather databaseExtensive construction type data

Electrical Field Calculator

Pipe bending calculations (offsets, saddles)Conduit fill calculations (NEC Table 1)Ampacity and wire sizing

This app assists electricians with complex calculations for pipe bending, conduit fill, ampacity, voltage drop, and box fill. It also offers a professional subscription for expert electrical advice and troubleshooting.

This professional electrical application assists electricians and engineers with complex calculations based on the Canadian Electric Code. It offers features for wire and conduit sizing, motor and transformer load calculations, voltage drop, and more. Easily generate panel legends and access in-app support.

Wire and conduit sizingMotor and transformer load calculationsVoltage drop calculations