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Electrical Wire Size Calculator

This should be used as a reference only. Please check with your electrical inspector or a licensed electrician for the proper wire size. There are many factors to consider before choosing the proper gauge.

wire size

wire size

wire_types

Having some issues with the calculator right now. I’m trying to fix it now. 3-1-17 Dominick. Somehow the one I had stopped working.

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Wire Size

Required Data Entry

Wire Type

Copper

Aluminum

Circuit Phase

Single Phase

Three Phase

Circuit Voltage

120

208

240

277

480

One Half The Total Circuit Length

Total Circuit Amperage

   



Calculated Results
Required Minimum Wire Size