Wire and Sheet Metal Gauge Equivalents

Number
 
Imperial Standard 
(swg)
Birmingham Wire
(bwg)
insmminsmm
0.3248.23.3408.63
1.3007.620.3007.62
2.2767.010.2847.21
3.2526.400.2596.58
4.2325.893.2386.05
5.2125.385.2205.59
6.1924.877.2035.16
7.1764.470.1804.57
8.1604.0641.654.19
9.1443.657.1483.76
10.1283.251.1343.40
11.1162.946.1203.04
12.1042.641.1092.77
13.0922.337.0952.41
14.0802.032.0832.11
15.0721.828.0721.83
16.0641.626.0651.65
17.0561.422.0581.47
18.0481.219.0491.24
19.0401.02.0421.07
20.036.914.035.888
21.032.813.032.813
22.028.711.028.711
23.024.610.025.635
24.0220.559.022.559
25.020.508.020.508