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Wire gauges

Bare solid round copper conductors by AWG gauge, from 8 to 30. The smaller the number, the thicker the wire: a 12 AWG conductor is 0.0808 in (2.05 mm) across and 3.31 mm² in section. AWG is an inch system: ASTM B258 defines the diameters in inches, so the mm values are conversions. Insulation, strands and length are the branded part's own, and a wire part links to the gauge it names.

23 specs, sorted by size. Counts are branded parts linked to each spec.

Spec	Gauge (AWG)	Diameter mm	Diameter in	Cross-section mm2	Parts	Brands
8 AWG wire	8	3.2636	0.1285	8.3656	5	1
9 AWG wire	9	2.9064	0.1144	6.6342	0	0
10 AWG wire	10	2.5882	0.1019	5.2612	24	10
11 AWG wire	11	2.3048	0.0907	4.1723	2	1
12 AWG wire	12	2.0525	0.0808	3.3088	40	15
13 AWG wire	13	1.8278	0.072	2.624	11	7
14 AWG wire	14	1.6277	0.0641	2.0809	39	8
15 AWG wire	15	1.4495	0.0571	1.6502	4	1
16 AWG wire	16	1.2908	0.0508	1.3087	21	6
17 AWG wire	17	1.1495	0.0453	1.0378	0	0
18 AWG wire	18	1.0237	0.0403	0.823	6	2
19 AWG wire	19	0.9116	0.0359	0.6527	0	0
20 AWG wire	20	0.8118	0.032	0.5176	12	6
21 AWG wire	21	0.7229	0.0285	0.4105	0	0
22 AWG wire	22	0.6438	0.0253	0.3255	17	3
23 AWG wire	23	0.5733	0.0226	0.2582	0	0
24 AWG wire	24	0.5106	0.0201	0.2047	6	3
25 AWG wire	25	0.4547	0.0179	0.1624	0	0
26 AWG wire	26	0.4049	0.0159	0.1288	15	3
27 AWG wire	27	0.3606	0.0142	0.1021	0	0
28 AWG wire	28	0.3211	0.0126	0.081	1	1
29 AWG wire	29	0.2859	0.0113	0.0642	0	0
30 AWG wire	30	0.2546	0.01	0.0509	0	0