Don't use this chart from AAW!!!
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:
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:
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