AWG

Definition of AWG in The Network Encyclopedia.

What is AWG (American Wire Gauge)?

Acronym for American Wire Gauge, a specification for the diameter of conducting wires. The higher the AWG number, the thinner the wire. Category 5 cabling is usually AWG 24 wire (0.020 inch or 0.511 millimeter in diameter), while thicknet generally uses AWG 12 wire (0.080 inch or 2.050 millimeters in diameter).

The following table shows some of the various AWG gauges for different diameters of wires. Note also that the thinner the wire, the higher its electrical resistance and hence the shorter the transmission distance (because resistance varies inversely with thickness).

AWG Gauges for Various Diameters of Wires

AWG Gauge Diameter (inches) Diameter (millimeters)
12
0.080
2.050
14
0.064
1.630
16
0.051
1.290
18
0.040
1.020
20
0.032
0.813
22
0.025
0.643
24
0.020
0.511
30
0.010
0.254