Now updated to reflect 2017 NEC® and includes an ebook of the 2017 edition of Ugly’s Electrical References. New Pinch & Zoom feature offers improved readability.
Electricians and electrical professionals have used ‘Ugly’s Electrical References’ as their on-the-job reference for over 35 years. Now an app, Ugly’s delivers the dependable, comprehensive, and easy-to-use information you rely on in a way that will serve you even better in the field.


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

*2017 edition of Ugly’s Electrical References ebook
*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.

What's New

Version 1.6.0

All-new diagrams for DC Motor Terminal Markings, transformer connections, three-phase phase rotation, and updated conduit fill tables and PPE Guidelines.

Ratings and Reviews

3.9 out of 5

13 Ratings

13 Ratings

Interactive searchable Uglys App!


This app is way overdue. I have been waiting for the official Uglys Electrical Reference app for a few years already. The first version is ok but as a subscription makes it possible for the authors to add any functionality they want. As time goes on and we send in suggestions this app will just get better and better. It needs some additional functionality such as pinch to zoom, a completely updated PDF version of the 2017 e-book, etc.

A step in the right direction


They have begun updating app. Still not the most user friendly but much more improvement over initial release. Developer seems to be addressing concerns for improvement of overall app. Hopefully with continued updates, app will become the UGLY'S that I've trusted and have gone to for over 20 years.

THIEFS!! They took the money but no help with subscription

The Gman1155

I needed this app for a new career path I started. The trial was great so I decided to purchase a subscription. They processed my payment through iTunes and took the money but the app doesn't recognize my subscription. Know I am in an endless loop to try to get this working or to get a refund. The developer blames Apple and Apple blames the developer. I don't even care now. Just give me my money back. Thiefs.

Developer Response

If you are still having this problem please contact Ugly's Customer Service at: and a representative will help you restore your purchase. Thank you.


Informed Publishing
70.6 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Copyright 2017 Jones & Bartlett Learning


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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