Convert wire gauge to millimeters using the American Wire Gauge (AWG) system
Learn how to use the Gauge to Millimeter Calculator and understand the AWG system
The American Wire Gauge (AWG) is a standard system for specifying the diameter of round, solid, non-ferrous, electrically conducting wire. The AWG system is based on the number of times the wire is drawn through a die to reduce its diameter.
The relationship between AWG number and diameter is logarithmic. As the AWG number increases, the diameter decreases. For example, AWG 0 wire has a diameter of approximately 0.3249 mm, while AWG 40 wire has a diameter of approximately 0.0714 mm.
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