Southwire® Conduit Fill Calc

4.2
316 reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this app

Southwire has created this great tool to help electricians, engineers and contractors answer the question, “What size conduit do I use” per the NEC®, includes fill percentages and jam probability. If you do not have the NEC book handy or do not want to spend time manually calculating the Conduit Fill %, this is the right app for you.

The app provides quick and easy navigation. Enter the Conduit Type and Size and specify your conductors. The App will calculate the Conduit Fill % as per NEC Guidelines.

Southwire Company is North America’s leading manufacturer of wire and cable used in the distribution transmission of electricity. Throughout its history, our company has sought to deliver power through our products, our service and by helping empower our customers, employees and communities.

The App Answers the question, “What size conduit do I use” includes fill percentages and jam probability per the NEC®. With one click, you can email your results.
Updated on
Jan 10, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.2
307 reviews
R C
December 13, 2023
Calculator is accurate, but CIC disclaimer needs to go. It takes up way too much space on the screen. I only get one conductor entry and have to scroll. More often than not, I end up selecting a cell entry rather than scrolling. And I cannot see all conductor data without scrolling. Very frustrating!!! Guess I'll have to look for another app....
4 people found this review helpful
Did you find this helpful?
Southwire Company
January 11, 2024
Thanks for your feedback. Check out the latest version of Conduit Fill, we've improved scrolling to allow better view of conductors.
Jim Princehorn - G
November 28, 2022
The conduit fill calculator is VERY temperamental, when attempting to scroll the screen. You must be very exact on where you touch the screen, or else, instead of scrolling the screen, you change one of the parameters in your plan. It might be more useful on a computer, but is tough to deal with on either of my phones.
5 people found this review helpful
Did you find this helpful?
Bradley Fisk
March 23, 2024
Quick and easy. It also tells you the probability of the wires jamming in the conduit for a given conduit size.
1 person found this review helpful
Did you find this helpful?

What's new

Improved scrolling to allow better view of conductors.