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Help References Home » Jump Ring Size Chart

Jump Ring Size Chart

Compare common jump ring sizes and wire gauges with this helpful reference chart. Learn how inside diameter, outside diameter, and wire thickness affect jewelry making, chainmaille, charms, pendants, and craft projects.

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.

Jump Ring Size Chart

Common jump ring sizes and typical jewelry-making uses.

4 mm

6 mm

8 mm

10 mm

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.