Wire Gauges Table - Birmingham, Brown & Sharp

Gauge	Washburn & Moen	British Imperial Standard (S.W.G.)	Birmingham or Stubs	American or Brown & Sharp
7/0	.4900"	.500"	---	---
6/0	.4615"	.464"	---	.5800"
5/0	.4305"	.432"	.500"	.5165"
4/0	.3938"	.400"	.454"	.4600"
3/0	.3625"	.372"	.425"	.4096"
2/0	.3310"	.348"	.380"	.3648"
1/0	.3065"	.324"	.340"	.3249"
1	.2830"	.300"	.300"	.2893"
2	.2625"	.276"	.284"	.2576"
3	.2437"	.252"	.259"	.2294"
4	.2253"	.232"	.238"	.2043"
5	.2070"	.212"	.220"	.1819"
6	.1920"	.192"	.203"	.1620"
7	.1770"	.176"	.180"	.1442"
8	.1620"	.160"	.165"	.1284"
9	.1483"	.144"	.148"	.1144"
10	.1350"	.128"	.134"	.1018"
11	.1205"	.116"	.120"	.0907"
12	.1055"	.104"	.109"	.0808"
13	.0915"	.092"	.095"	.0719"
14	.0800"	.080"	.083"	.0640"
15	.0720"	.072"	.072"	.0570"
16	.0625"	.064"	.065"	.0508"
17	.0540"	.056"	.058"	.0452"
18	.0475"	.048"	.049"	.0403"
19	.0410"	.040"	.042"	.0358"
20	.0348"	.036"	.035"	.0319"
Gauge Number	Washburn & Moen	British Imperial Standard (S.W.G.)	Birmingham or Stubs	American or Brown & Sharp
21	.0317"	.032"	.032"	.0284"
22	.0286"	.028"	.028"	.0253"
23	.0258"	.024"	.025"	.0225"
24	.0230"	.022"	.022"	.0201"
25	.0204"	.020"	.020"	.0179"
26	.0181"	.018"	.018"	.0159"
27	.0173"	.0164"	.016"	.0141"
28	.0162"	.0148"	.014"	.0126"
29	.0150"	.0136"	.013"	.0112"
30	.0140"	.0124"	.012"	.0100"
31	.0132"	.0116"	.010"	.0089"
32	.0128"	.0108"	.009"	.0079"
33	.0118"	.0100"	.008"	.0070"
34	.0104"	.0092"	.007"	.0063"
35	.0095"	.0084"	.005"	.0056"
36	.0090"	.0076"	.004"	.0050"
37	.0085"	.0068"	---	.0044"
38	.0080"	.0060"	---	.0039"
39	.0075"	.0052"	---	.0035"
40	.0070"	.0048"	---	.0031"
41	.0066"	.0044"	---	.00280"
42	.0062"	.0040"	---	.00249"
43	.0060"	.0036"	---	.00222"
44	.0058"	.0032"	---	.00198"
45	.0055"	.0028"	--	.00176"
46	.0052"	.0024"	---	.00157"
47	.0050"	.0020"	---	.00140"
48	.0048"	.0016"	---	.00124"
49	.0046"	.0012"	--	.00111"
50	.0044"	.0010"	--	.00099"