Sheet Metal Gauge Chart

June 23, 2024
Construction Articles, Hardware/Fittings

Plate, Sheet, and Foil Sheet Metal Gauge Chart showing cross reference conversions of SWG (Standard Wire Gauge), inches, and millimeters.

SWG	Inches	mm
7/0	0.500	12.70
6/0	0.464	11.79
5/0	0.432	10.97
4/0	0.400	10.16
3/0	0.372	9.45
2/0	0.348	8.84
1/0	0.324	8.24
1	0.300	7.62
2	0.276	7.01
3	0.252	6.40
4	0.232	5.89
5	0.212	5.39
6	0.192	4.88
7	0.176	4.47
8	0.160	4.06
9	0.144	3.66
10	0.128	3.25
11	0.116	2.95
12	0.104	2.64
13	0.092	2.34
14	0.080	2.03
15	0.072	1.83
16	0.064	1.63
17	0.056	1.42
18	0.048	1.22
19	0.040	1.02
20	0.036	0.91
21	0.032	0.81
22	0.028	0.71
SWG	Inches	mm
23	0.024	0.61
24	0.022	0.56
25	0.020	0.51
26	0.018	0.46
27	0.016	0.42
28	0.015	0.38
29	0.014	0.35
30	0.012	0.32
31	0.012	0.30
32	0.011	0.27
33	0.010	0.25
34	0.009	0.23
35	0.008	0.21
36	0.008	0.19
37	0.007	0.17
38	0.006	0.15
39	0.005	0.13
40	0.005	0.12
41	0.004	0.11
42	0.004	0.10
43	0.004	0.09
44	0.003	0.08
45	0.003	0.07
46	0.002	0.06
47	0.002	0.05
48	0.002	0.04
49	0.001	0.03
50	0.001	0.03
SWG	Inches	mm