List of body piercing size of gauge and millimeters
Gauge and Milli size List
| 20 g | 0.8mm |
| 18 g | 1.0mm |
| 16 g | 1.2mm |
| 14 g | 1.6mm |
| 12g | 2.0mm |
| 10 g | 2.4mm |
| 8g | 3.2mm |
| 6g | 4.0mm |
| 4 g | 4.8mm |
| 2 g | 6.4mm |
| 0 g | 7.9 mm |
| 00 g | 9.5mm |
| 7/16 inch | 11.1 mm |
| 1/2 inch | 12.7 mm |
| 9/16 inch | 14.3 mm |
| 5/8 inch | 15.9 mm |
| 3/4 inch | 19.0mm |
| 7/8 inch | 22.2 mm |
| 1inch | 25.4 mm |