Southwire Voltage Drop
4.2star
223 reviews
100K+
Downloads
Everyone
info
About this app
Southwire's voltage drop calculator will help you determine the proper wire size for an electrical circuit based on the voltage drop and current carrying capacity of an electrical circuit. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. When sizing conductors, calculations limits wire size to voltage drop and NEC ampacity. Southwire's Voltage Drop Calculator is designed for applications using AWG and KCMIL sizes only.
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Ratings and reviews
4.2
216 reviews
Dave Culver
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July 16, 2024
Good tool, would be great if I could see the entered info instead of dots and dashes
Southwire Company
July 25, 2024
Check out the latest version of Voltage Drop. We've just made some improvements based on your feedback.
Bradley Fisk
- Flag inappropriate
April 30, 2021
Excellent app for a construction electrician, or maintenance electrician who does rewiring jobs. Multiple options, first you have to learn how to calculate several wires of different sizes in one conduit, but after you do it is intuitive and just a great program
14 people found this review helpful
A Google user
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March 12, 2020
Spot on, except I wish the app gave an option to select insulation classes of conductors. Instead, it defaults to 60c insulation which is strange being that 75c is a typical spec. Just know your ampacity ratings of conductors, and base your selection off of the voltage drop. Ie... size 3 in the app is rated for 85A(60c), but I'm running size 3 THHN(90c) which is good for 115A.
15 people found this review helpful
What's new
Improved text sizing.
