Best Electrical Load Calculator Apps

207+ iOS apps curated and reviewed

4.2 avg rating
17 free apps
Updated May 2026

Looking for free electrical load calculator apps? 17 of our 207+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Electrical Load Calculator

Kopperfield#2

Kopperfield by Kopperfield, Inc.

Load calcs, NEC help, and more
Strong Contender
🔧 Utilities
3.9(9 ratings)
FreeAds
Kopperfield screenshot 1
Kopperfield screenshot 2
Kopperfield screenshot 3
Kopperfield screenshot 4
Kopperfield screenshot 5
Kopperfield screenshot 6

Streamline your electrical design and permitting process with this comprehensive tool, featuring load calculators, line diagrams, panel schedules, and NEC code references. Get instant access to essential features and generate professional reports to share with inspectors and customers, saving you time and money.

More Electrical Load Calculator apps to explore

4
eLoad Calculator
eLoad Calculator
eLoad Calculator
Best Electric Load Calculator
Free
🔧 Utilities
(0)
5
Electrical Calculations
Electrical Calculations
Electrical Calculations
by Egal Net di Ettore Gallina
Free
📊 Productivity
(125)
6
ElectriCalc Pro
ElectriCalc Pro
ElectriCalc Pro
Electrician NEC Calculator
Free
$29.99 | 100% OFF

This electrical code calculator app helps electrical contractors, designers, and specialists solve complex calculations in seconds, ensuring conformance with the latest National Electrical Code (NEC). Try it for free before buying, and discover a comprehensive electrical reference tool that saves time, trouble, and money.

🔧 Utilities
(256)
7
NEC On The Run
NEC On The Run
NEC On The Run
by Northeast Conference
Free

NEC on the Run app offers live and on-demand content for fans of Northeast Conference sports, providing access to games across various sports and exclusive behind-the-scenes footage. Download now to stay connected with your favorite NEC teams.

⚽ Sports
(1.2K)
8
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire Calculator
Free

Calculate the right wire size for your electrical circuit with this voltage drop calculator. Ensure proper conductivity while meeting specific voltage drop limits and NEC ampacity standards. Perfect for AWG and KCMIL sizes in various applications.

🔧 Utilities
(1.4K)
9
Electrical Load Calc NEC
Electrical Load Calc NEC
Electrical Load Calc NEC
NEC Art.220 Residential Load
$0.99
🔧 Utilities
(1)
10
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app is a comprehensive electrical reference guide that has been updated to align with the 2020 National Electrical Code. It offers a range of features such as calculators, interactive tools, and in-depth information for electricians, making it a valuable on-the-job resource.

📊 Productivity
(1.4K)
11
COMMAX IoT
COMMAX IoT
COMMAX IoT
by COMMAX CO., LTD
Free

Control your home's IoT system with your smartphone, allowing you to manage devices, security settings, and receive notifications. Download the app to experience a convenient and connected home, and discover how to get started with your home's IoT devices.

🌟 Lifestyle
(1)
12
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

This application helps electricians, engineers, and contractors quickly determine the proper conduit size to use based on NEC guidelines, including fill percentages and jam probability. Simply input conduit type, size, and conductors, and the app will calculate the conduit fill percentage for you.

🔧 Utilities
(679)
13
Electrical Code-A-Day
Electrical Code-A-Day
Electrical Code-A-Day
Quiz for Electricians
Free

Put your electrical knowledge to the test with this daily quiz app for electricians! Answer a new question each day or binge-answer them all at once. Perfect for apprentices, journeymen, and masters looking to sharpen their skills or refresh their knowledge. Lightning-fast learning on all things electrical!

📊 Productivity
(8.6K)
14
Electrician's Sidekick
Electrician's Sidekick
Electrician's Sidekick
by IDEAL INDUSTRIES, INC
Free

This free tool combines multiple electrical calculators into one convenient app, allowing electricians to efficiently and accurately complete tasks such as conduit bending, wire sizing, and voltage drop calculations. With its various calculators and features, it helps electricians maximize their fieldwork efficiency and accuracy, and is available for use even without internet connectivity.

📊 Productivity
(16)
15
COMMAX
COMMAX
COMMAX
by COMMAX CO., LTD
Free

Control and monitor your smart home systems remotely using your mobile device, with features such as device control, security settings, energy management, and call receiving. Download now and experience the convenience of managing your home's lighting, temperature, security, and more in one place.

🌟 Lifestyle
(4)
16
NEC Electrical Exam by Dakota
NEC Electrical Exam by Dakota
NEC Electrical Exam by Dakota
NEC Practice Test Questions
Free

Prepare for your NEC Electrical Exam with over 2,000 practice questions and 100 diagrams tailored to Journeyman, Master Electrician, or Electrical Contractor levels. Join thousands of successful electricians by downloading the app today.

📚 Education
(369)
17
Ohms Law Calc.
Ohms Law Calc.
Ohms Law Calc.
Wire Size & Voltage Drop
Free

Ohms Law Calc. is a comprehensive app featuring 62 electrical calculators and formulas for various calculations such as voltage, current, resistance, and power. Explore a wide range of tools including voltage drop, power factor, transformer calculator, and more!

🔧 Utilities
(1.3K)
18
Electrical Toolkit by HCP
Electrical Toolkit by HCP
Electrical Toolkit by HCP
Conduit + load calcs for pros
Free

A comprehensive electrical calculator and conduit bending tool designed for professionals, providing common calculations and conversions in a clean and simple interface for efficient work. Download it to streamline your electrical work and stay ahead with upcoming updates adding more tools.

🔧 Utilities
(18)
19
Electrical Load Case Studies
Electrical Load Case Studies
Electrical Load Case Studies
by Yuhsiu Lai
$4.99

This application provides a practical approach to learning electrical load calculations and design processes for residential wiring systems, featuring step-by-step explanations, code requirements, and real-world case studies. It helps professionals and students understand and apply key calculations and concepts, making it easier to design, review, and install residential electrical systems.

🔍 Reference
(1)
20
Master Electrician Ref. Lite
Master Electrician Ref. Lite
Master Electrician Ref. Lite
A handbook for electricians
Free

A comprehensive electronic pocket electrician reference guide for electrical professionals and enthusiasts, providing essential information, calculations, NEC tables, and safety manuals. Visit MasterSparky.com for more details and upgrade to the full version for extensive content covering NEC codes over various years.

📊 Productivity
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