Piercing Measurement Guide
| Gauge / Thicknes Conversions | Diameter Conversions | Length Conversions | ||||||
| Gauge | Millimeters | Inches | Millimeters | Inches | Millimeters | Inches | ||
| 18g | 1.0mm | 0.040" | 10.0mm | 0.400" | 6.0mm | 0.236" | ||
| 16g | 1.2mm | 0.047" | 12.0mm | 0.472" | 8.0mm | 0.314" | ||
| 14g | 1.6mm | 0.062" | 14.0mm | 0.551" | 10.0mm | 0.400" | ||
| 12g | 2.0mm | 0.078" | 16.0mm | 0.630" | 11.0mm | 0.433" | ||
| 10g | 2.5mm | 0.098" | 18.0mm | 0.708" | 12.0mm | 0.472" | ||
| 8g | 3.0mm |
0.118" | 20.0mm | 0.787" | 14.0mm | 0.551" | ||
| 6g | 4.0mm | 0.157" | 22.0mm | 0.866" | 16.0mm | 0.630" | ||
| 4g | 5.0mm | 0.196" | 24.0mm | 0.944" | 18.0mm | 0.708" | ||
| 2g | 6.0mm | 0.236" | 26.0mm | 1.023" | 19.0mm | 0.748" | ||
| 0g | 8.0mm | 0.314" | 28.0mm | 1.102" | 20.0mm | 0.787" | ||
| 00g | 10.0mm | 0.400" | 30.0mm | 1.181" | 22.0mm | 0.866" | ||
