Thickness Conversion Table

Steel Thickness Conversion Table (Gauge - Inch - MM)

Gauge No B.W.G   U.S.G     Gauge No. B.W.G.   U.S.G  
  inch mm inch mm     inch mm inch mm
6 .203" 5.156 .2031" 5.16   21 .032" 0.813 .0344" 0.873
7 .180" 4.572 .1875" 4.76   22 .028" 0.711 .0313" 0.794
8 .165" 4.191 .1719" 4.37   23 .025" 0.635 .0281" 0.714
9 .148" 3.759 .1563" 3.97   24 .022" 0.559 .0250" 0.635
10 .134" 3.404 .1406" 3.57   25 .020" 0.508 .0219" 0.556
11 .120" 3.048 .1250" 3.18   26 .018" 0.457 .0188" 0.478
12 .109" 2.769 .1094" 2.78   27 .016" 0.406 0.172" 0.437
13 .095" 2.413 .0938" 2.38   28 .014" 0.356 .0156" 0.396
14 .083" 2.108 .0781" 1.98   29 .013" 0.330 .0141" 0.358
15 .072" 1.829 .0703" 1.79   30 .012" 0.305 .0125" 0.318
16 .065" 1.651 .0625" 1.59   31 .010" 0.254 .0109" 0.277
17 .058" 1.473 .0563" 1.43   32 .009" 0.229 .0102" 0.259
18 .049" 1.245 .0500" 1.27   33 .008" 0.203 .0094" 0.239
19 .042" 1.067 .0438" 1.11   34 .007" 0.178 .0086" 0.218
20 .035" 0.889 .0375" 0.953   35 .005" 0.127 .0078" 0.198

BWG - Birmingham Wire Gauge for Iron & Steel Wire

USD - US Standard Gauge for Stainless Steel


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