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Wire and Sheet Metal Gauges of U.K. and U.S.A.


No. Standard Wire Gauge (SWG) Birmingham Gauge
(BG)
American Brown and Sharpe's Gauge
(AWG)

  1 2 3 4 5 6

in mm in mm in mm
15.0 - - 1.000 25.4 - -
14.0 - - 0.958 3 24.34 - -
13.0 - - 0.916 7 23.28 - -
12.0 - - 0.875 0 22.22 - -
11.0 - - 0.833 3 21.17 - -
10.0 - - 0.791 7 20.11 - -
9.0 - - 0.750 19.05 - -
8.0 - - 0.708 3 17.99 - -
7.0 0.500 12.700 0.666 6 16.93 - -
6.0 0.464 11.786 0.625 15.88 - -
5.0 0.432 10.973 0.588 3 14.94 - -
4.0 0.400 10.160 0.54 16 13.76 0.460 0 11.68
3.0 0.372 9.449 0.500 12.70 0.409 6 10.40
2.0 0.348 8.839 0.445 2 11.31 0.364 8 9.27
0 0.324 8.230 0.396 4 10.07 0.324 9 8.25
1 0.300 7.620 0.353 2 8.971 0.289 3 7.35
2 0.276 7.010 0.314 7 7.993 0.257 6 6.54
3 0.252 6.401 0.280 4 7.122 0.229 4 5.83
4 0.232 5.893 0.250 6.652 0.204 3 5.19