Don't use this chart from AAW!!!

https://www.americanautowire.com/vie...tomotive-wire/

How to determine the gauge (AWG) of automotive wire

Make a small cut about 1/2″ long in the wire insulation and remove it. Count the individual strands of copper that make up the wire. Next, use a micrometer and measure one of the strands. Now use the following chart to determine the gauge of your automotive wire.


7/ .028 = 20 AWG (7 strands that measure .028 each equals 20 gauge)
16/ .030 = 18 AWG
19/ .029 = 16 AWG
19/ .027 = 14 AWG
19/ .025 = 12 AWG
19/ .023 = 10 AWG
19/ .021 = 8 AWG
37/ .021 = 6 AWG

A quick glance tells you it's wrong. The individual strands get smaller as the wire size gets bigger. I wonder how long they've had that FAQ up.


This one is better but has more variants:

https://electronics.stackexchange.co...wn-wires-gauge