General Cable’s Voltage Drop Calculator is a quick and easy tool to find Maximum Circuit Distance and Minimum Conductor Size for the required voltage drop. It is designed for contractors, electricians, and other electrical professionals.

The minimum conductor size section will show the required conductor size, actual voltage loss, maximum allowable voltage loss, and maximum amps for the conductor. The amperage values are from the NEC® table T310.15 (B) (16) 75°C rating. Conductor sizes are determined based on the amperage value provided by the user and not the expected loads which in some scenarios may result in a larger conductor size.

The Maximum Circuit Distance section shows maximum circuit distance, allowable voltage loss, actual voltage loss, and maximum amps of the selected conductor.

Code Selection for NEC® 2011, 2014, and 2017.

Metric or standard conductors

General Cable (NYSE:BGC), a Fortune 500 company, has been a wire and cable innovator for over 165 years. With more than 14,000 associates, we are one of the largest wire and cable manufacturers in the world.

What’s New

Version 2.2.6

- Version 2.2.6 -
- SDK update and background changes.

Ratings and Reviews

5.0 out of 5
5 Ratings

5 Ratings

mototrafreak ,

Exactly as described easy to use

Nice app

Whooooooooaaaaaaa ,


Does exactly what it says.

App Privacy

The developer, General Cable Corporation, 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:

  • Identifiers
  • Usage Data

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


  • Family Sharing

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

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