The following table gives the diameters, in decimal parts of an inch, of the various sizes of wire corresponding to the number of gauge numbers of the different standard wire gauges used in the United States.
————————+————————-+————————-+——————————+——————-+——————-+——————-+——————- Number | Ameri- | Birming-| Wash- | Tren- |G.W. | Old | Brit- of | can, or | ham, or | burn & | ton | Pren- | Eng- | ish Wire | Brown & | Stubs | Moen | Iron | tiss, | lish, | Stan- Gauge | Sharpe | (B.W.G.)| Mfg. Co.,| Co., | Holy- | From | dard | (B.&S.) | | Worces- | Tren- | oke, | Brass | (S.W.- | | | ter, | ton, | Mass. | Mfrs' | G.) | | | Mass. | N.J. | | List | ————————+————————-+————————-+——————————+——————-+——————-+——————-+——————- 0000000 | | | | | | | .500 000000 | | | .460 | | | | .464 00000 | | | .430 | .450 | | | .432 0000 | .46000 | .454 | .393 | .400 | | | .400 000 | .40964 | .425 | .362 | .360 | .3586 | | .372 00 | .36480 | .380 | .331 | .330 | .3282 | | .348 0 | .32486 | .340 | .307 | .305 | .2994 | | .324 1 | .28930 | .300 | .283 | .285 | .2777 | | .300 2 | .25763 | .284 | .263 | .265 | .2591 | | .276 3 | .22942 | .259 | .244 | .245 | .2401 | | .252 4 | .20431 | .238 | .225 | .225 | .2230 | | .232 5 | .18194 | .220 | .207 | .205 | .2047 | | .212 6 | .16202 | .203 | .192 | .190 | .1885 | | .192 7 | .14428 | .180 | .177 | .175 | .1758 | | .176 8 | .12849 | .165 | .162 | .160 | .1605 | | .160 9 | .11443 | .148 | .148 | .145 | .1471 | | .144 10 | .10189 | .134 | .135 | .130 | .1351 | | .128 11 | .090742 | .120 | .120 | .1175 | .1205 | | .116 12 | .080808 | .109 | .105 | .1050 | .1065 | | .104 13 | .071961 | .095 | .0920 | .0925 | .0928 | | .0920 14 | .064084 | .083 | .0800 | .0800 | .0816 | .08300| .0800 15 | .057068 | .072 | .0720 | .0700 | .0726 | .07200| .0720 16 | .050820 | .065 | .0630 | .0610 | .0627 | .06500| .0640 17 | .045257 | .058 | .0540 | .0525 | .0546 | .05800| .0560 18 | .040303 | .049 | .0470 | .0450 | .0478 | .04900| .0480 19 | .035890 | .042 | .0410 | .0400 | .0411 | .04000| .0400 20 | .031961 | .035 | .0350 | .0350 | .0351 | .03500| .0360 21 | .028462 | .032 | .0320 | .0310 | .0321 | .03150| .0320 22 | .025347 | .028 | .0280 | .0280 | .0290 | .02950| .0280 23 | .022571 | .025 | .0250 | .0250 | .0261 | .02700| .0240 24 | .020100 | .022 | .0230 | .0225 | .0231 | .02500| .0220 25 | .017900 | .020 | .0200 | .0200 | .0212 | .02300| .0200 26 | .015940 | .018 | .0180 | .0180 | .0194 | .02050| .0180 27 | .014195 | .016 | .0170 | .0170 | .0182 | .01875| .0164 28 | .012641 | .014 | .0160 | .0160 | .0170 | .01650| .0148 29 | .011257 | .013 | .0150 | .0150 | .0163 | .01550| .0136 30 | .010025 | .012 | .0140 | .0140 | .0156 | .01375| .0124 31 | .008928 | .010 | .0130 | .0130 | .0146 | .01225| .0116 32 | .007950 | .009 | .0120 | .0120 | .0136 | .01125| .0108 33 | .007080 | .008 | .0110 | .0110 | .0130 | .01025| .0100 34 | .006305 | .007 | .0100 | .0100 | .0118 | .00950| .0092 35 | .005615 | .005 | .0095 | .0095 | .0109 | .00900| .0084 36 | .005000 | .004 | .0090 | .0090 | .0100 | .00750| .0076 37 | .004453 | | .0085 | .0085 | .0095 | .00650| .0068 38 | .003965 | | .0080 | .0080 | .0090 | .00575| .0066 39 | .003531 | | .0075 | .0075 | .0083 | .00500| .0052 40 | .003145 | | .0070 | .0070 | .0078 | .00450| .0048 41 | | | | | | | .0044 42 | | | | | | | .0040 ————————+————————-+————————-+——————————+——————-+——————-+——————-+——————-