Gauge No. B.W.G U.S.G inch mm inch mm 6 .203 5.156 .2031 5.16 7 .180 4.572 .1875 4.76 8 .165 4.191 .1719 4.37 9 .148 3.759 .1563 3.97 10 .134 3.404 .1406 3.57 11 .120 3.048 .1250 3.18 12 .109 2.769 .1094 2.78 13 .095 2.413 .0938 2.38 14 .083 2.108 .0781 1.98 15 .072 1.829 .0703 1.79 16 .065 1.651 .0625 1.59 17 .058 1.473 .0563 1.43 18 .049 1.245 .0500 1.27 19 .042 1.067 .0438 1.11 20 .035 .889 .0375 .953

Gauge No. B.W.G U.S.G inch mm inch mm 21 .032 .813 .0344 .873 22 .028 .711 .0313 .794 23 .025 .635 .0218 .714 24 .022 .559 .0250 .635 25 .020 .508 .0219 .556 26 .018 .457 .0188 .478 27 .016 .406 .0172 .437 28 .014 .356 .0156 .396 29 .013 .330 .0141 .358 30 .012 .305 .0125 .318 31 .010 .254 .0109 .277 32 .009 .229 .0102 .259 33 .008 .203 .0094 .239 34 .007 .178 .0086 .218 35 .005 .127 .0078 .198