INCHES METRIC INCHES METRIC INCHES METRIC
FRACTIONAL DECIMAL mm FRACTIONAL DECIMAL mm FRACTIONAL DECIMAL mm
. 0.0039 0.1000 . 0.5512 14.0000 . 1.8898 48.0000
. 0.0079 0.2000 9/16 0.5625 14.2875 . 1.9291 49.0000
. 0.0118 0.3000 . 0.5709 14.5000 . 1.9685 50.0000
1/64 0.0156 0.3969 37/64 0.5781 14.6844 2 2.0000 50.8000
. 0.0157 0.4000 . 0.5906 15.0000 . 2.0079 51.0000
. 0.0197 0.5000 19/32 0.5938 15.0813 . 2.0472 52.0000
. 0.0236 0.6000 39/64 0.6094 15.4781 . 2.0866 53.0000
. 0.0276 0.7000 . 0.6102 15.5000 . 2.1260 54.0000
1/32 0.0313 0.7938 5/8 0.6250 15.8750 . 2.1654 55.0000
. 0.0315 0.8000 . 0.6299 16.0000 . 2.2047 56.0000
. 0.0354 0.9000 41/64 0.6406 16.2719 . 2.2441 57.0000
. 0.0394 1.0000 . 0.6496 16.5000 2 1/4 2.2500 57.1500
. 0.0433 1.1000 21/32 0.6563 16.6688 . 2.2835 58.0000
3/64 0.0469 1.1906 . 0.6693 17.0000 . 2.3228 59.0000
. 0.0472 1.2000 43/64 0.6719 17.0656 . 2.3622 60.0000
. 0.0512 1.3000 11/16 0.6875 17.4625 . 2.4016 61.0000
. 0.0551 1.4000 . 0.6890 17.5000 . 2.4409 62.0000
. 0.0591 1.5000 45/64 0.7031 17.8594 . 2.4803 63.0000
1/16 0.0625 1.5875 . 0.7087 18.0000 2 1/2 2.5000 63.5000
. 0.0630 1.6000 23/32 0.7188 18.2563 . 2.5197 64.0000
. 0.0669 1.7000 . 0.7283 18.5000 . 2.5591 65.0000
. 0.0709 1.8000 47/64 0.7344 18.6531 . 2.5984 66.0000
. 0.0748 1.9000 . 0.7480 19.0000 . 2.6378 67.0000
5/64 0.0781 1.9844 3/4 0.7500 19.0500 . 2.6772 68.0000
. 0.0787 2.0000 49/64 0.7656 19.4469 . 2.7165 69.0000
. 0.0827 2.1000 . 0.7677 19.5000 2 3/4 2.7500 69.8500
. 0.0866 2.2000 25/32 0.7813 19.8438 . 2.7559 70.0000
. 0.0906 2.3000 . 0.7874 20.0000 . 2.7953 71.0000
3/32 0.0938 2.3813 51/64 0.7969 20.2406 . 2.8346 72.0000
. 0.0945 2.4000 . 0.8071 20.5000 . 2.8740 73.0000
. 0.0984 2.5000 13/16 0.8125 20.6375 . 2.9134 74.0000
7/64 0.1094 2.7781 . 0.8268 21.0000 . 2.9528 75.0000
. 0.1181 3.0000 53/64 0.8281 21.0344 . 2.9921 76.0000
1/8 0.1250 3.1750 27/32 0.8438 21.4313 3 3.0000 76.2000
. 0.1378 3.5000 . 0.8465 21.5000 . 3.0315 77.0000
9/64 0.1406 3.5719 55/64 0.8594 21.8281 . 3.0709 78.0000
5/32 0.1563 3.9688 . 0.8661 22.0000 . 3.1102 79.0000
. 0.1575 4.0000 7/8 0.8750 22.2250 . 3.1496 80.0000
11/64 0.1719 4.3656 . 0.8858 22.5000 . 3.1890 81.0000
. 0.1772 4.5000 57/64 0.8906 22.6219 . 3.2283 82.0000
3/16 0.1875 4.7625 . 0.9055 23.0000 . 3.2677 83.0000
. 0.1969 5.0000 29/32 0.9063 23.0188 . 3.3071 84.0000
13/64 0.2031 5.1594 59/64 0.9219 23.4156 . 3.3465 85.0000
. 0.2165 5.5000 . 0.9252 23.5000 . 3.3858 86.0000
7/32 0.2188 5.5563 15/16 0.9375 23.8125 . 3.4252 87.0000
15/64 0.2344 5.9531 . 0.9449 24.0000 . 3.4646 88.0000
. 0.2362 6.0000 61/64 0.9531 24.2094 3 1/2 3.5000 88.9000
1/4 0.2500 6.3500 . 0.9646 24.5000 . 3.5039 89.0000
. 0.2559 6.5000 31/32 0.9688 24.6063 . 3.5433 90.0000
17/64 0.2656 6.7469 . 0.9843 25.0000 . 3.5827 91.0000
. 0.2756 7.0000 63/64 0.9844 25.0031 . 3.6220 92.0000
9/32 0.2813 7.1438 1 1.0000 25.4000 . 3.6614 93.0000
. 0.2953 7.5000 . 1.0039 25.5000 . 3.7008 94.0000
19/64 0.2969 7.5406 . 1.0236 26.0000 . 3.7402 95.0000
5/16 0.3125 7.9375 . 1.0433 26.5000 . 3.7795 96.0000
. 0.3150 8.0000 . 1.0630 27.0000 . 3.8189 97.0000
21/64 0.3281 8.3344 . 1.0827 27.5000 . 3.8583 98.0000
. 0.3346 8.5000 . 1.1024 28.0000 . 3.8976 99.0000
11/32 0.3438 8.7313 . 1.1220 28.5000 . 3.9370 100.0000
. 0.3543 9.0000 . 1.1417 29.0000 4 4.0000 101.6000
23/64 0.3594 9.1281 . 1.1614 29.5000 . 4.3307 110.0000
. 0.3740 9.5000 . 1.1811 30.0000 4 1/2 4.5000 114.3000
3/8 0.3750 9.5250 . 1.2205 31.0000 . 4.7244 120.0000
25/64 0.3906 9.9219 1 1/4 1.2500 31.7500 5 5.0000 127.0000
. 0.3937 10.0000 . 1.2598 32.0000 . 5.1181 130.0000
13/32 0.4063 10.3188 . 1.2992 33.0000 . 5.5118 140.0000
. 0.4134 10.5000 . 1.3386 34.0000 . 5.9055 150.0000
27/64 0.4219 10.7156 . 1.3780 35.0000 6 6.0000 152.4000
. 0.4331 11.0000 . 1.4173 36.0000 . 6.2992 160.0000
7/16 0.4375 11.1125 . 1.4567 37.0000 . 6.6929 170.0000
. 0.4528 11.5000 . 1.4961 38.0000 . 7.0866 180.0000
29/64 0.4531 11.5094 1 1/2 1.5000 38.1000 . 7.4803 190.0000
15/32 0.4688 11.9063 . 1.5354 39.0000 . 7.8740 200.0000
. 0.4724 12.0000 . 1.5748 40.0000 8 8.0000 203.2000
31/64 0.4844 12.3031 . 1.6142 41.0000 . 9.8425 250.0000
. 0.4921 12.5000 . 1.6535 42.0000 10 10.0000 254.0000
1/2 0.5000 12.7000 . 1.6929 43.0000 20 20.0000 508.0000
. 0.5118 13.0000 . 1.7323 44.0000 30 30.0000 762.0000
33/64 0.5156 13.0969 1 3/4 1.7500 44.4500 40 40.0000 1016.0000
17/32 0.5313 13.4938 . 1.7717 45.0000 60 60.0000 1524.0000
. 0.5315 13.5000 . 1.8110 46.0000 80 80.0000 2032.0000
35/64 0.5469 13.8906 . 1.8504 47.0000 100 100.0000 2540.0000

Wire Sheet Gauge Conversion

(SWG = Standard Wire Gauge)

SWG inches mm
7/0 0.500 12.700
6/0 0.464 11.786
5/0 0.432 10.973
4/0 0.400 10.160
3/0 0.372 9.449
2/0 0.348 8.839
1/0 0.324 8.236
1 0.300 7.620
2 0.276 7.010
3 0.252 6.401
4 0.232 5.893
5 0.212 5.385
6 0.192 4.877
7 0.176 4.470
8 0.160 4.064
9 0.144 3.658
10 0.128 3.251
11 0.116 2.946
12 0.104 2.642
SWG inches mm
13 0.092 2.337
14 0.080 2.032
15 0.072 1.829
16 0.064 1.626
17 0.056 1.422
18 0.048 1.219
19 0.040 1.016
20 0.036 0.914
21 0.032 0.813
22 0.028 0.711
23 0.024 0.610
24 0.022 0.559
25 0.020 0.508
26 0.018 0.457
27 0.0164 0.417
28 0.0148 0.376
29 0.0136 0.345
30 0.0124 0.315
31 0.0116 0.295
SWG inches mm
32 0.0108 0.274
33 0.0100 0.254
34 0.0092 0.234
35 0.0084 0.213
36 0.0076 0.193
37 0.0068 0.173
38 0.006 0.152
39 0.0052 0.132
40 0.0048 0.122
41 0.0044 0.112
42 0.004 0.102
43 0.0036 0.091
44 0.0032 0.081
45 0.0028 0.071
46 0.0024 0.061
47 0.002 0.051
48 0.0016 0.041
49 0.0012 0.030
50 0.001 0.025

© Copyright 2012 Ringwood Precision Engineering

Wednesday the 26th.
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