| Size Conversion Chart |
| Gauge |
|
Length&Diameter |
| Gauge |
Millimeters |
|
Inches |
Millimeters |
| 0 ga |
8.0mm |
|
5/64 |
2mm |
| 2 ga |
7.0mm |
|
5/32 |
4mm |
| 3 ga |
6.0mm |
|
1/4 |
6mm |
| 4 ga |
5.0mm |
|
5/16 |
8mm |
| 6 ga |
4.0mm |
|
3/8 |
10mm |
| 8 ga |
3.2mm |
|
1/2 |
12mm |
| 10 ga |
2.5mm |
|
9/16 |
14mm |
| 12 ga |
2.0mm |
|
5/8 |
16mm |
| 14 ga |
1.6mm |
|
11/16 |
18mm |
| 16 ga |
1.2mm |
|
3/4 |
20mm |
| 18 ga |
1.0mm |
|
7/8 |
22mm |
| 20 ga |
0.8mm |
|
15/16 |
24mm | |