Inside / Outside Diameter Comparison
Use this handy chart to find the perfect jump rings for your next project. The inside diameter chart tells you how to measure the inside of a jump ring, while the outside diameter chart gives you the outer measurement. With this tool, you'll see how to tell the ratios of various gauges and sizes of jump rings—especially useful for chainmaille designs.
| Round | |||||||||||||||
| Outside Diameter | 12 gauge | 14 ga | 15 ga | 16 ga | 17 ga | 18 ga | 19 ga | 20 ga | 20.5 ga | 21 ga | 22 ga | 23 ga | 23.5 ga | 24 ga | 24.5 ga |
| 2mm |
0.8mm
1.5mm |
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| 2.15mm |
1.2mm
|
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| 2.3mm |
1.3mm
|
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| 2.5mm |
1.5mm
|
1.5mm
|
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| 2.75mm |
1.78mm
|
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| 2.8mm |
1mm
|
1.3mm
|
1.5mm
|
1.8mm
|
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| 3mm |
1.2mm
|
1.3mm
1.2mm |
1.4mm
1.6mm |
1.5mm
|
1.4mm
|
1.6mm
1.7mm 1.8mm 1.9mm 2mm 2.2mm |
1.9mm
|
1.9mm
|
1.9mm
2mm |
||||||
| 3.05mm |
1.9mm
|
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| 3.3mm |
1.5mm
1.6mm |
1.8mm
|
2mm
|
2.28mm
|
|||||||||||
| 3.5mm |
1.7mm
|
1.7mm
1.8mm |
2mm
|
2mm
|
2.2mm
2.36mm 2.3mm |
2.5mm
|
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| 3.7mm |
2.5mm
|
||||||||||||||
| 3.8mm |
2.1mm
2mm |
2.3mm
|
2.5mm
|
||||||||||||
| 3.8mm |
2mm
2.1mm |
2.3mm
|
2.5mm
|
||||||||||||
| 4mm |
2.2mm
2.4mm |
2.2mm
2.3mm |
2.4mm
2.5mm |
2.5mm
|
2.6mm
|
2.6mm
2.7mm 2.8mm 2.9mm |
3mm
|
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| 4.05mm |
1.7mm
|
||||||||||||||
| 4.3mm |
2.5mm
2.6mm |
2.8mm
|
3mm
|
||||||||||||
| 4.5mm |
2.7mm
|
2.7mm
2.8mm |
3mm
|
3mm
|
3mm
|
3.1mm
3.2mm 3.5mm |
|||||||||
| 4.8mm |
3mm
3.1mm |
3.3mm
|
3.5mm
|
||||||||||||
| 5mm |
2.4mm
2.5mm |
2.7mm
3mm 3.2mm |
3.2mm
3.3mm 3.4mm |
3mm
3.4mm 3.5mm 3.6mm |
3.5mm
|
3.4mm
3.5mm 3.6mm |
3.6mm
3.7mm 3.9mm |
4mm
|
|||||||
| 5.3mm |
2.7mm
2.8mm |
3.3mm
|
3.5mm
|
3.8mm
|
4mm
|
||||||||||
| 5.5mm |
2.9mm
3mm |
3.5mm
3.7mm 4mm |
3.7mm
3.8mm |
3.8mm
3.9mm 4mm |
4mm
|
4.2mm
|
4.5mm
|
||||||||
| 5.6mm |
4mm
|
||||||||||||||
| 5.8mm |
3.8mm
|
4mm
4.1mm |
4.3mm
|
4.5mm
|
|||||||||||
| 6mm |
3.4mm
3.5mm 3.6mm |
3.6mm
4mm 4.2mm 4.4mm |
4.2mm
4.3mm |
3.6mm
4mm 4.2mm 4.4mm 4.5mm 4.6mm |
4.5mm
|
4.4mm
4.6mm 4.7mm |
4.7mm
|
4.9mm
|
5mm
|
||||||
| 6.3mm |
3.7mm
3.8mm |
4.3mm
|
4.5mm
4.6mm |
4.8mm
|
5mm
|
||||||||||
| 6.5mm |
3.9mm
4mm |
4.5mm
|
4.6mm
4.7mm 4.8mm |
5mm
|
5.2mm
|
||||||||||
| 6.8mm |
4.2mm
4.3mm |
4.8mm
|
5mm
5.1mm |
5.3mm
|
5.5mm
|
||||||||||
| 7mm |
4.4mm
4.5mm |
5mm
5.2mm |
5.2mm
5.3mm |
5.4mm
5.6mm |
5.5mm
|
5.4mm
5.7mm |
5.7mm
|
5.9mm
|
|||||||
| 7.3mm |
4.7mm
4.8mm |
5.3mm
|
5.5mm
|
5.8mm
|
6mm
|
||||||||||
| 7.4mm |
5.6mm
|
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| 8mm |
5.5mm
5.6mm 5.8mm 6mm |
6mm
6.2mm |
6.2mm
6.3mm |
5.6mm
6.4mm 6.6mm |
6.5mm
|
6.7mm
|
6.9mm
|
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| 8.5mm |
6.35mm
|
6.5mm
|
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| 9mm |
6.5mm
6.6mm |
7mm
7.2mm |
7.2mm
7.3mm |
7.4mm
8mm |
7.5mm
|
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| 9.7mm |
7.6mm
|
||||||||||||||
| 10mm |
6.8mm
|
7.4mm
7.6mm |
8mm
8.2mm |
7.6mm
8.4mm |
|||||||||||
| 10.9mm |
8.6mm
|
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| 12mm |
7.9mm
|
9.6mm
|
10mm
|
10.4mm
|
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| 13mm |
10.6mm
|
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| 14mm |
11mm
|
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| 15mm |
12.6mm
|
||||||||||||||
| 17.5mm |
15.1mm
|
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| 18mm |
16.4mm
|
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| Oval | |||||||||||||||
| Outside Diameter | 12 gauge | 14 ga | 15 ga | 16 ga | 17 ga | 18 ga | 19 ga | 20 ga | 20.5 ga | 21 ga | 22 ga | 23 ga | 23.5 ga | 24 ga | 24.5 ga |
| 3x2mm |
2x1.4mm
|
2x1mm
2x1.4mm |
|||||||||||||
| 3.5x2.4mm |
1.5x0.4mm
|
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| 3.5X2.5mm |
1.9X0.9mm
|
2.1X1.1mm
|
2.3X1.3mm
|
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| 4.3mm |
2.4X1.4mm
2.6X1.6mm |
2.6X1.6mm
2.7X1.7mm 2.9X1.9mm 3X2mm |
2.8X1.8mm
3X2mm |
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| 4X3.5mm |
2.8X2.3mm
|
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| 4.5X3mm |
2.4X1.9mm
|
2.5X1mm
3.1X1.6mm |
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| 4.6X3mm |
3.3X1.7mm
|
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| 5.5x3.3mm |
4x2.1mm
|
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| 5.3x3.5mm |
4x2.2mm
|
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| 5x4.5mm |
3.8x3.2mm
|
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| 6x4mm |
3.7x2.7mm
4.2x2.2mm |
4.4x2.4mm
4.6x2.6mm |
4.6x2.6mm
4.7x2.5mm 4.7x2.7mm |
4.7x2.9mm
5x3mm |
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| 6.4x1.4mm |
4.9x2.6mm
|
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| 6.5x5mm |
4x3mm
4.7x3.2mm |
4.9x3.4mm
|
5.1x3.6mm
|
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| 7x5mm |
5.1x3.1mm
|
5.2x3.2mm
5.5x3.5mm 6x4mm |
5.4x3.4mm
|
5.4x3.4mm
|
5.6x3.6mm
|
6x4mm
|
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| 7x6mm |
4.6x3.6mm
|
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| 7.6x4.1mm |
5.8x3.1mm
|
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| 8X5mm |
6X3mm
|
5.2X3.2mm
|
3.4X6.4mm
|
6.9X3.9mm
|
6.9X3.9mm
|
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| 8X6mm |
6X4mm
|
6.2X4.2mm
|
6.6X4.6mm
|
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| 9.6X6.4mm |
7.1X3.9mm
|
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| Hearts | |||||||||||||||
| Outside Diameter | 12 gauge | 14 ga | 15 ga | 16 ga | 17 ga | 18 ga | 19 ga | 20 ga | 20.5 ga | 21 ga | 22 ga | 23 ga | 23.5 ga | 24 ga | 24.5 ga |
| 5mm |
3.7mm
|
||||||||||||||
| 3.5mm |
5.3mm
|
||||||||||||||
| Triangles | |||||||||||||||
| Outside Diameter | 12 gauge | 14 ga | 15 ga | 16 ga | 17 ga | 18 ga | 19 ga | 20 ga | 20.5 ga | 21 ga | 22 ga | 23 ga | 23.5 ga | 24 ga | 24.5 ga |
| 5mm |
3.8mm
|
||||||||||||||
| 7.5mm |
5.9mm
|
||||||||||||||
| 12.5mm |
10.1mm
|
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