We made an update to InterNACHI’s free, online “How to Perform Residential Electrical Inspections” course to help explain the relationship between size of wires and AWG.
Also, NEC makes a good phone app that calculates the size of wire by temperature. It is only a few dollars.
I can’t seem to find it…I have android :roll:
Do you all know the history of why they call it AWG? Quite interesting in fact.