JEWELLERY CONVERSION SIZE GUIDE
(UK - US)
| Gauge / Post Thickness |
Length / Internal Diameter
|
| 1mm = 18G |
3.1mm = 1/8" |
| 1.2mm = 16G |
3.9mm = 5/32" |
| 1.6mm = 14G |
4.7mm =3/16" |
| 2.0mm = 12G |
5.5mm = 7/32" |
| 2.4mm = 10G |
6.4mm = 1/4" |
| 3.2mm = 8G |
7.1mm = 9/32" |
| 4mm = 6G |
7.9mm = 5/16" |
| 5mm = 4G |
8.7mm = 11/32" |
| 6mm = 2G |
9.5mm = 3/8" |
| 8mm = 0G |
11.1mm = 7/16" |
| 10mm = 00G |
12.7mm = 1/2" |
| 12mm = 1/2" |
14.2mm = 9/16" |
| 14mm = 9/16" |
15.8mm = 5/8" |
| 16mm = 5/8" |
17.4mm = 11/16" |
| 18mm = 11/16" |
19mm = 3/4" |
| 20mm = 13/16" |
20.6mm = 13/16" |
| 22mm = 7/8" |
22.2mm= 7/8" |
