Wire Gauge (Wire No.) | OKUTANI Co., Ltd

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Wire Gauge (Wire No.)

Note 1)

SWG＝British Imperial Standard Wire Gauge
BWG＝Birmingham (or Stubs Iron) Wire Gauge

Gauge Nos. and diameters below are quoted from American Iron and Steel Institute's "Steel Products Manual 1963" translated and published in Japan. The wire diameter of each gauge is principally shown by inches, which is converted to the metric size shown in the table.

Wire Gauge	S. W. G.
	Diameter		Sectional Area mm	Length of 1 kg Wire m
	mm	in.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24	8.23 7.62 7.01 6.40 5.893 5.385 4.877 4.470 4.064 3.658 3.251 2.946 2.642 2.337 2.032 1.829 1.626 1.422 1.219 1.016 0.9144 0.8128 0.7112 0.6096 0.5588	0.324 0.300 0.276 0.252 0.232 0.212 0.192 0.176 0.160 0.144 0.128 0.116 0.104 0.092 0.080 0.072 0.064 0.056 0.048 0.040 0.036 0.032 0.028 0.024 0.022	53.197 45.604 38.595 32.170 27.275 22.775 18.680 15.693 12.972 10.509 8.301 6.816 5.482 4.290 3.243 2.627 2.076 1.583 1.167 0.8107 0.6567 0.5189 0.3973 0.2919 0.2452	2.39 2.79 3.29 3.96 4.67 5.58 6.81 8.11 9.81 12.11 15.33 18.67 23.21 29.66 39.23 48.43 61.26 80.37 109.00 157.20 193.70 245.10 320.20 435.90 518.80

Wire Gauge	S. W. G.
	Diameter		Sectional Area mm	Length of 1 kg Wire m
	mm	in.
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50	0.5080 0.4572 0.4166 0.3759 0.3454 0.3150 0.2946 0.2743 0.2540 0.2337 0.2134 0.1930 0.1727 0.1524 0.1321 0.1219 0.1118 0.1016 0.0914 0.0813 0.0711 0.0610 0.0508 0.0406 0.0305 0.0254	0.020 0.018 0.0164 0.0148 0.0136 0.0124 0.0116 0.0108 0.0100 0.0092 0.0084 0.0076 0.0068 0.0060 0.0052 0.0048 0.0044 0.0040 0.0036 0.0032 0.0028 0.0024 0.0020 0.0016 0.0012 0.0010	0.2027 0.1642 0.1363 0.1110 0.0937 0.0780 0.0682 0.0591 0.0507 0.0429 0.0358 0.0293 0.0234 0.0182 0.0137 0.0117 0.0098 0.0081 0.0066 0.0052 0.0040 0.0029 0.0020 0.0013 0.0007 0.0005	627.60 774.80 933.40 1,146.00 1,358.00 1,631.00 1,865.00 2,153.00 2,509.00 2,965.00 3,553.00 4,347.00 5,437.00 6,990.00 9,287.00 10,900.00 12,980.00 15,720.00 19,370.00 24,460.00 31,810.00 43,870.00 63,610.00 97,860.00 181,800.00 254,500.00

Wire Gauge	B. W. G.
	Diameter		Sectional Area mm	Length of 1 kg Wire m
	mm	in.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36	8.64 7.62 7.21 6.58 6.045 5.588 5.156 4.572 4.191 3.759 3.404 3.048 2.769 2.413 2.108 1.829 1.651 1.473 1.245 1.067 0.8839 0.8128 0.7112 0.6350 0.5588 0.5080 0.4572 0.4064 0.3556 0.3302 0.3048 0.2540 0.2286 0.2032 0.1778 0.1270 0.1016	0.340 0.300 0.284 0.259 0.238 0.220 0.203 0.180 0.165 0.148 0.134 0.120 0.109 0.095 0.083 0.072 0.065 0.058 0.049 0.042 0.035 0.032 0.028 0.025 0.022 0.020 0.018 0.016 0.014 0.013 0.012 0.010 0.009 0.008 0.007 0.005 0.004	58.630 45.604 40.828 34.005 28.700 24.525 20.879 16.417 13.795 11.098 9.100 7.297 6.022 4.572 3.490 2.627 2.141 1.704 1.217 0.894 0.614 0.5189 0.3973 0.3167 0.2452 0.2027 0.1642 0.1297 0.0993 0.0856 0.0730 0.0507 0.0410 0.0324 0.0248 0.0127 0.0081	2.17 2.79 3.12 3.74 4.43 5.19 6.09 7.74 9.22 11.46 13.97 17.43 21.12 28.09 36.46 48.43 59.42 74.66 104.50 141.30 207.20 245.10 320.20 401.70 518.80 627.60 774.80 980.90 1,281.90 1,486.00 1,743.00 2,509.00 3,103.00 3,923.00 5,130.00 10,020.00 15,720.00

1ton/in.=1.5754kg/mm² 　1lbs/in2=0.000703kg/mm² 　0.9842T=1Long T.
1T=10160Long T. 　1Long T.=2240lbs