Southwire Conduit Fill Calc is a free iPhone app developed by Southwire Company, a leading manufacturer of wire and cable in North America. This app is designed to assist electricians, engineers, and contractors in determining the appropriate size conduit to use, based on the National Electrical Code (NEC®) guidelines. With its user-friendly interface and efficient calculations, this app saves users time and effort in manually calculating conduit fill percentages.

The app offers easy navigation, allowing users to input the conduit type, size, and specify their conductors. Once the information is entered, the app quickly calculates the conduit fill percentage according to NEC guidelines. This eliminates the need for users to refer to the NEC book or spend time manually performing calculations.

Southwire Conduit Fill Calc is a valuable tool for professionals in the electrical industry. It provides accurate answers to the question, "What size conduit do I use?" and also includes fill percentages and jam probability per NEC guidelines. Additionally, the app allows users to conveniently email their results with just one click.

With its practical features and reliable calculations, Southwire Conduit Fill Calc is a must-have utility for electricians, engineers, and contractors. It simplifies the process of determining conduit size and ensures compliance with NEC regulations.