Jump Ring Size Chart
Jump rings are circular metal rings with a small opening that allows them to be twisted open and closed for attaching components. They are available in many inside diameters and wire gauges, making them suitable for everything from delicate earrings to heavy-duty keychains and chainmaille projects. Choosing the correct size and gauge helps ensure both the appearance and strength of the finished design.
Jump rings are one of the most versatile findings used in jewelry making and crafts. They connect clasps, charms, pendants, chains, and decorative components while allowing movement between pieces. This reference chart compares common jump ring diameters and wire gauges to help you choose the right size for your project. Whether you're creating necklaces, bracelets, earrings, keychains, or other handmade items, understanding jump ring sizes can make assembly easier and produce a stronger, more professional-looking finished piece.
Jump rings are used to connect charms, clasps, chains, pendants, and jewelry components. Sizes are usually described by inside diameter, outside diameter, wire gauge, or millimeter size, which can sometimes be confusing. This chart provides a general reference for common jump ring sizes and typical jewelry-making uses.
Note: Jump Ring Illustrations are not to scale.
| Jump Ring Size |
Approx. Inside Diameter |
Suggested Wire Gauge |
Strength |
Common Uses |
| 4 mm |
2.5 - 3 mm |
22 - 24 Gauge |
Light |
Small Charms, Lightweight Earrings |
| 5 mm |
3 - 3.5 mm |
20 - 22 Gauge |
Light to Medium |
Charms, Chain Extensions, Delicate Jewelry |
| 6 mm |
4 mm |
18 - 20 Gauge |
Medium |
Bracelets, Pendants, General Jewelry Making |
| 7 mm |
5 mm |
18 - 20 Gauge |
Medium |
Necklaces, Keychains, Larger Charms |
| 8 mm |
6 mm |
16 - 18 Gauge |
Medium to Heavy |
Bracelets, Chunky Jewelry, Chain Maille |
| 10 mm |
7 - 8 mm |
16 Gauge |
Heavy |
Large Pendants, Key Rings, Heavy Connectors |
| 12 mm |
9 - 10 mm |
14 - 16 Gauge |
Heavy |
Statement Jewelry, Large Craft Connectors |
Note: Jump ring measurements may vary depending on whether the size refers to inside diameter or outside diameter. For best results, check the product description carefully and choose a heavier gauge for items that will receive more wear.
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