Ugly's Electrical References

The Ugly's Electrical References App has been updated to reflect changes to the 2026 National Electrical Code (NEC) and the 2026 Edition of our popular Ugly’s Electrical References book. The Ugly’s App offers the most pertinent, up-to-date digital information for electricians, including table change information, mathematical formulas; National Electrical Manufacturers Association (NEMA) wiring configurations; a conduit bending guide with videos, ampacity and conduit fill information, transformer and control circuit wiring diagrams, and conversion tables.

The 2026 Edition:

* Reflects changes to the 2026 NEC

* Features expanded coverage of the following topics:

* Full-load currents for 3-phase transformers 

* Maximum number of conductors in electrical metallic tubing for trade sizes 5 and 6 

* Equipment grounding conductors 

* General lighting loads for non-dwelling occupancies 

* Overview of important NEC code changes from 2020, 2023 and 2026 

Electricians and electrical professionals have used ‘Ugly’s Electrical References’ book as their on-the-job reference for over 35 years. This app will serve you even better in the field today. 

FEATURING

Calculators and Interactive Features

• Ohm’s Law Calculator

• Voltage Drop Calculator

• Ampacity Calculator

• To Find: Amps, Watts, Horsepower, KVA

• To Find: Inductance, Impedance, Reactance

• Three-phase AC Motor Data: Starter, Breaker, Heater, Wire, and Conduit Size

• Power Factor Correction

• Full Load Current for Motors and Transformers

• Locked-Rotor Current Calculator

• Offset Bending Calculator

• Conduit Fill Calculator

• Conversions for Area, Length, Temperature, Time, Volume, and Weight

• NEMA Wiring Configurations

*Pinch & Zoom for improved readability

*Conduit Bending Video Tutorials

*Search function helps you quickly find what you need to know

*NEC Updater outlines and explains changes to the National Electrical Code©

*Electrical Safety including definitions, boundaries, procedures, PPE guidance, and life-saving *First aid procedures

*Blueprint symbol identifier

*Bookmark your commonly used screens

*High-definition images and interactive tables that can be zoomed in for detail

*Works offline

*Great for electricians, students, engineers, contractors, maintenance workers, and military

Interested in a buying more than one copy of the Ugly’s Electrical Reference app for your commercially owned devices? Please email info[at]uglys[dot]net for details on volume purchases.

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The Ugly’s Electrical Reference app is part of the popular Ugly’s Professional Reference® series, which is an imprint of Jones & Bartlett Learning. National Electrical Code and NFPA 70 are registered trademarks of the National Fire Protection Agency and are not associated with Ugly’s Electrical References in any way.