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| | American Wire Gauge table and AWG Electrical Current Load Limits |
 | | For the 00, 000, 0000 etc. gauges you use -1, -2, -3, which makes more sense mathematically than "double nought." This means that in American wire gage every 6 gauge decrease gives a doubling of the wire diameter, and every 3 gauge decrease doubles the wire cross sectional area. |
 | | Metric Gauge: In the Metric Gauge scale, the gauge is 10 times the diameter in millimeters, so a 50 gauge metric wire would be 5 mm in diameter. |
 | | Note that in AWG the diameter goes up as the gauge goes down, but for metric gauges it is the opposite. |
| www.powerstream.com /Wire_Size.htm (507 words) |
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