St andards for Sheet and Wire Gages with Corresponding St arrett Gages Dimensions of Sizes in Decimal Parts of an Inch Number of Wire Gage 281 188 287 280 Stubs' Steel Wire 283 245 American or Brown & Sharpe Birmingham or Stubs' Iron Wire Washburn & Moen, Worcester, MA American S. & W. Co's. Music Wire Gage U.S. Standard Gage for Sheet and Plate Iron and Steel 00000000 .731429 0000000 .651356 000000 .580049 .004 .46875 00000 .516549 .005 .4375 0000 .460000 .454 .3938 .006 .40625 000 .409642 .425 .3625 .007 .375 00 .364797 .380 .3310 .008 .34375 0 .324861 .340 .3065 .009 .3125 1 .289279 .300 .2830 .010 .227 .28125 2 .257626 .284 .2625 .011 .219 .265625 3 .229423 .259 .2437 .012 .212 .250 4 .204307 .238 .2253 .013 .207 .234375 5 .181941 .220 .2070 .014 .204 .21875 6 .162023 .203 .1920 .016 .201 .203125 7 .144285 .180 .1770 .018 .199 .1875 8 .128490 .165 .1620 .020 .197 .171875 9 .114424 .148 .1483 .022 .194 .15625 10 .101897 .134 .1350 .024 .191 .140625 11 .090742 .120 .1205 .026 .188 .125 12 .080808 .109 .1055 .029 .185 .109375 13 .071962 .095 .0915 .031 .182 .09375 14 .064084 .083 .0800 .033 .180 .078125 15 .057068 .072 .0720 .035 .178 .0703125 16 .050821 .065 .0625 .037 .175 .0625 17 .045257 .058 .0540 .039 .172 .05625 18 .040303 .049 .0475 .041 .168 .050 19 .035891 .042 .0410 .043 .164 .04375 20 .031961 .035 .0348 .045 .161 .0375 21 .028462 .032 .03175 .047 .157 .034375 22 .025347 .028 .0286 .049 .155 .03125 23 .022572 .025 .0258 .051 .153 .028125 24 .020101 .022 .0230 .055 .151 .025 25 .017900 .020 .0204 .059 .148 .021875 26 .015941 .018 .0181 .063 .146 .01875 27 .014196 .016 .0173 .067 .143 .0171875 28 .012641 .014 .0162 .071 .139 .015625 29 .011258 .013 .0150 .075 .134 .0140625 30 .010025 .012 .0140 .080 .127 .0125 31 .008928 .010 .0132 .085 .120 .0109375 32 .007950 .009 .0128 .090 .115 .01015625 33 .007080 .008 .0118 .095 .112 .009375 34 .006305 .007 .0104 .110 .00859375 35 .005615 .005 .0095 .108 .0078125 36 .005000 .004 .0090 .106 .00703125 37 .004453 .103 .006640625 38 .003965 .101 .00625 39 .003531 .099 40 .003145 .097 590 R eference T ables