Common Gauges Inner Diameter to Outer Diameter Conversion Chart
Jump Ring Gauge |
ID (Inner Diameter) |
Equivalent OD (outer diameter) |
18 gauge |
2.5mm |
4.5mm |
3.0mm |
5.0mm |
|
3.5mm |
5.5mm |
|
4.0mm |
6.0mm |
|
4.5mm |
6.5mm |
|
5.0mm |
7.0mm |
|
5.5mm |
7.5mm |
|
6.0mm |
8.0mm |
|
6.5mm |
8.5mm |
|
7.0mm |
9.0mm |
|
7.5mm |
9.5mm |
|
8.0mm |
10mm |
|
8.5mm |
10.5mm |
|
9.0mm |
11mm |
|
9.5mm |
11.5mm |
|
10mm |
12mm |
|
10.5mm |
12.5mm |
|
11mm |
13mm |
|
11.5mm |
13.5mm |
|
12mm |
14mm |
|
16 gauge |
3.5mm |
6.0mm |
4.0mm |
6.5mm |
|
4.5mm |
7.0mm |
|
5.0mm |
7.5mm |
|
5.5mm |
8.0mm |
|
6.0mm |
8.5mm |
|
6.5mm |
9.0mm |
|
7.0mm |
9.5mm |
|
7.5mm |
10mm |
|
8.0mm |
10.5mm |
|
8.5mm |
11mm |
|
9.0mm |
11.5mm |
|
9.5mm |
12mm |
|
10mm |
12.5mm |
|
10.5mm |
13mm |
|
11mm |
13.5mm |
|
11.5mm |
14mm |
|
12mm |
14.5mm |