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Wire Gauge

Convenient Conversion Table

Below is a helpful conversion table for Wire Gauge. The conversion is best approximation only as there seems to be no general and consistent agreement to the exact conversion. What is consistently true is that the higher the gauge number, the smaller the diameter of the wire. As a guide, you will find this table very useful.

The gauge applies to beading wire, tigertail, as well as jewelry wire (metal wire).

Conversion Table - Gauge to Inches/Millimeters
Gauge Size Ø in inches Ø in mm
10 0.1019 2.588
12 0.0808 2.05
14 0.0641 1.63
16 0.0508 1.29
18 0.0403 1.02
20 0.0320 0.813
22 0.0253 0.643
24 0.0201 0.511
26 0.0159 0.404
28 0.0125 0.320
30 0.0100 0.254
32 same thickness as general sewing thread



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