Southwire® Conduit Fill Calc

Utilities

Free · Designed for iPad

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.

  • 4.5
    out of 5
    695 Ratings

New graphics.

The developer, Southwire Company, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • Southwire Company
  • Size
    • 16.5 MB
  • Category
    • Utilities
  • Compatibility
    Requires iOS 15.5 or later.
    • iPhone
      Requires iOS 15.5 or later.
    • iPad
      Requires iPadOS 15.5 or later.
    • iPod touch
      Requires iOS 15.5 or later.
    • Mac
      Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
  • Languages
    • English
  • Age Rating
    4+
  • Copyright
    • © 2025 Southwire® Company, LLC