Forum » EFI Wiring Fundamentals » Help with wire size conversion

Help with wire size conversion

EFI Wiring Fundamentals

Forum Posts



Tech Articles

Discussion and questions related to the course Motorsport Wiring Fundamentals

= Resolved threads

Page 1


I own a GM vehicle and in the OEM wiring schematics, they are listing wire sizes as .5, .75, 1, 1.5, 2.5, etc. I looked over the AWG to metric conversion chart provided in the Wiring Fundamentals course, but the numbers GM are using didn't match up. Would anyone have an idea of what AWG wire size matches what GM is listing as wire sizes? I attached an image for reference. Any help would be appreciated.


Attached Files

There is obviously no direct match due to the odd conversion between AWG and real units. But here it is roughly:

0,5 mm² = 20 AWG

0,75 mm² = 19 AWG

1 mm² = 18 AWG

1,5 mm² = 16 AWG

2,5 mm² = 14 AWG

Great, I appreciate the help Christoph!

PDF attached.

Attached Files
  • AWG-American-Wire-Gauge-To-Metric-Sqmm-Millimeters-Squared-Conversion-Table.pdf
  • Attachments may only be downloaded by paid Gold members. Read more about becoming a Gold member here.

Thank you, Rustin!