Jewelry Size Reference Guide
Gauge Conversion Chart
| Gauge (ga) | Millimetres (mm) |
|---|---|
| 20ga | 0.8mm |
| 18ga | 1.0mm |
| 16ga | 1.2mm |
| 14ga | 1.6mm |
| 12ga | 2.0mm |
| 10ga | 2.4mm |
| 8ga | 3.2mm |
| 6ga | 4.0mm |
| 4ga | 5.0mm |
| 2ga | 6.0mm |
| 0ga | 8.0mm |
| 00ga | 10.0mm |
Jewelry Length Reference
| Length (mm) | Inches (fraction) |
|---|---|
| 5mm | 3/16" |
| 6mm | 1/4" |
| 7mm | ~9/32" |
| 8mm | 5/16" |
| 9mm | ~11/32" |
| 10mm | 3/8" |
| 11mm | 7/16" |
| 12mm | 1/2" |
| 13mm | 1/2" |
| 14mm | 9/16" |
| 16mm | 5/8" |
| 18mm | 11/16" |
| 19mm | 3/4" |
| 20mm | 13/16" |
| 22mm | 7/8" |
| 24mm | ~15/16" |
| 25mm | 1" |
| 28mm | 1-1/8" |
| 30mm | 1-3/16" |
| 32mm | 1-1/4" |
| 34mm | 1-3/8" |
| 38mm | 1-1/2" |
| 44mm | 1-3/4" |
| 50mm | 2" |