Wire sizes: Metric to AWG

Summary: American Wire Gauge with Metric Equivalents Table

This is a quick reference between AWG and Metric wire gauges.

American Wire Gauge (AWG) with Metric Equivalents

AWG	Diameter (Inches)	millimetres	millimetres squared	Nearest Size (mm2)
7	0.1443	3.67	10.55	10
8	0.1285	3.26	8.36	--
10	0.1019	2.59	5.26	6.0
12	0.0808	2.05	3.31	4.0
14	0.0641	1.63	2.08	2.5
16	0.0508	1.29	1.31	1.5
17	0.0453	1.15	1.04	1.0
18	0.0403	1.02	0.82	1.0
19	0.0359	0.91	0.65	0.75
20	0.032	0.81	0.52	0.5

Not all sizes are shown. For the equivalent to 22AWG, use the 20AWG or 0.5mm². If in doubt, use the next larger size.