For those who always wondered about how the thickness of wire was rated. As seen below, the smaller the gage the thicker the wire. Keep this handy chart for reference. Another post will reference distance vs thickness to determine the size of wire you require for your projects.
Wire Gauge / Gage Conversion Chart
| S.W.G. | Wire Number | A.W.G. or B&S | A.W.G. Metric |
|
(Inches) |
(Gauge) |
(Inches) |
(MM) |
| 0.500 | 0000000 (7/0) | ………………….. | ………… |
| 0.464 | 000000 (6/0) | 0.580000 | ………… |
| 0.432 | 00000 (5/0) | 0.516500 | ………… |
| 0.400 | 0000 (4/0) | 0.460000 | 11,684 |
| 0.372 | 000 (3/0) | 0.409642 | 10,404 |
| 0.348 | 00 (2/0) | 0.364796 | 9,266 |
| 0.324 | 0 (1/0) | 0.324861 | 8,252 |
| 0.300 | 1 | 0.289297 | 7,348 |
| 0.276 | 2 | 0.257627 | 6,543 |
| 0.252 | 3 | 0.229423 | 5,827 |
| 0.232 | 4 | 0.2043 | 5,189 |
| 0.2120 | 5 | 0.1819 | 4,621 |
| 0.1920 | 6 | 0.1620 | 4,115 |
| 0.1760 | 7 | 0.1443 | 3,665 |
| 0.1600 | 8 | 0.1285 | 3,264 |
| 0.1440 | 9 | 0.1144 | 2,906 |
| 0.1280 | 10 | 0.1019 | 2,588 |
| 0.1160 | 11 | 0.0907 | 2,304 |
| 0.1040 | 12 | 0.0808 | 2,052 |
| S.W.G. | Wire Number | A.W.G. or B&S | A.W.G. Metric |
| 0.0920 | 13 | 0.0720 | 1,829 |
| 0.0800 | 14 | 0.0641 | 1,628 |
| 0.0720 | 15 | 0.0571 | 1,450 |
| 0.0640 | 16 | 0.0508 | 1,291 |
| 0.0560 | 17 | 0.0453 | 1,150 |
| 0.0480 | 18 | 0.0403 | 1,024 |
| 0.0400 | 19 | 0.0359 | 0,9119 |
| 0.0360 | 20 | 0.0320 | 0,8128 |
| 0.0320 | 21 | 0.0285 | 0,7239 |
| 0.0280 | 22 | 0.0253 | 0,6426 |
| 0.0240 | 23 | 0.0226 | 0,5740 |
| 0.0220 | 24 | 0.0201 | 0,5106 |
| 0.0200 | 25 | 0.0179 | 0,4547 |
| 0.0180 | 26 | 0.0159 | 0,4038 |
| 0.0164 | 27 | 0.0142 | 0,3606 |
| 0.0148 | 28 | 0.0126 | 0,3200 |
| 0.0136 | 29 | 0.0113 | 0,2870 |
| 0.0124 | 30 | 0.0100 | 0,2540 |
| 0.0116 | 31 | 0.0089 | 0,2261 |
| 0.0108 | 32 | 0.0080 | 0,2032 |
| 0.0100 | 33 | 0.0071 | 0,1803 |
| S.W.G. | Wire Number | A.W.G. or B&S | A.W.G. Metric |
| 0.0092 | 34 | 0.0063 | 0,1601 |
| 0.0084 | 35 | 0.0056 | 0,1422 |
| 0.0076 | 36 | 0.0050 | 0,1270 |
| 0.0068 | 37 | 0.0045 | 0,1143 |
| 0.0060 | 38 | 0.0040 | 0,1016 |
| 0.0052 | 39 | 0.0035 | 0,0889 |
| 0.0048 | 40 | 0.0031 | 0,0787 |
| 0.0044 | 41 | 0.0028 | 0,0711 |
| 0.0040 | 42 | 0.0025 | 0,0635 |
| 0.0036 | 43 | 0.0022 | 0,0559 |
| 0.0032 | 44 | 0.0020 | 0,0508 |
| 0.0028 | 45 | 0.0018 | 0,0457 |
| 0.0024 | 46 | 0.0016 | 0,0406 |
| 0.0020 | 47 | 0.0014 | 0,0350 |
| 0.0016 | 48 | 0.0012 | 0.0305 |
| 0.0012 | 49 | 0.0011 | 0,0279 |
| 0.0010 | 50 | 0.0010 | 0,0254 |
| 51 | 0.00088 | 0,0224 | |
| 52 | 0.00078 | 0,0198 | |
| 53 | 0.00070 | 0,0178 | |
| 54 | 0.00062 | 0,0158 | |
| 55 | 0.00055 | 0,0140 | |
| 56 | 0.00049 | 0,0124 |
Wire Gauges / Gages Arranged In Columns As Follows:
AWG= American Wire Gauge
B&S= Brown & Sharpe
SWG= Imperial Standard Wire Gauge-(British legal standard)
Wire Guage /Gage Comment:
Values are stated in approximate decimals of an inch excluding the metric numbers. As a number of gauges are in use for various shapes and metals, it is advisable to state the thickness in thousands when specifying in gauge number. Metric wire gauge is 10 times the diameter in millimeters.
