Jewellery Size

Measuring body jewellery

Choose the right size before you buy online.

Remember that we can not refund jewellery that has a broken seal (been opened). 

Understanding piercing jargon


What gauge is my piercing jewellery?

The gauge size of your piercing is the thickness of the bar that goes through your piercing. In other words, it’s the barbell’s thickness. Note that the thicker the barbell, the lower the gauge size. So a 12 gauge (or 12G) barbell is much thicker than a 16 gauge (16G) barbell.

Piercing Jewellery Length

What is the length of my piercing jewellery?

The length of your piercing jewellery refers to the length of the barbell that goes through your piercing. It is measured from the top to the bottom of the straight (or bent) barbell and does not include the balls or charms.

Piercing Jewelry Diameter

What is the diameter of my piercing jewelry?

Diameter is used to measure the size of round barbells like hoops, captives, and circulars. It is measured from the inner and widest point of the circle.


Measure the length of a barbell between the two balls along the length of the bar.

Ball Closure Ring (BCR) | Captive Bead Ring (CBR)’s

Ball Closure Rings are measured from the largest inside diameter.

Ball Closure Rings are also known as BCR’s or Captive Bead Rings – CBR’s. They come in many variations, shapes, and sizes, but the same measuring rule applies. Always measure the largest inside diameter of the circle.

Circular | Horseshoe | Half Ring

Circular barbells are measured from the largest inside diameter.

A Circular or Horseshoe is commonly used for Septum, Daith, Smiley, Lip, Helix, and for male genital piercings.

Banana Bar | Curved Barbell | Bent Barbells

Curved barbells are measured in a straight line from the inner length between the two balls.

Banana Bars | Curved barbells | Bent barbells, are commonly used for navel (Belly button), Eyebrow, Snug, Rook, Bridge, Vertical lip and surface piercings.

Labret | Flat back

They are measured from the base of the ball to the top of the flat disc.

Labrets, also know as flat backs, and worn in a variety of piercings around the cheeks and mouth as well as in tragus earrings and cartilage studs. The flat back is perfect for piercings that require a close fit.  Standard lengths for labrets are 1/4″ or 5/16″. The 3/16″ is generally used for cartilage piercings rather than lip piercings for a nice, snug fit.

Nose Screws, Nose Bones & Nose Studs

Both Nose studs and nose bones are measured from the base of the ball or charm to the beginning of the beaded tip for nose bones or end of the barbell for nose studs. Nose Screws are measured from the base of the ball or charm to the beginning of the twist.

The standard gauge for nose rings is 18G or 20G and 1.5mm or 2mm in length.

How do I know what size my body piercing is?

The following are standard sizes for body jewellery used for each piercing However we cannot guarantee that the size on our chart is the size used for your specific piercing. These are the standard gauges and lengths used by professional piercers. Everyone’s body is different, and sometimes piercers will use different lengths and gauges depending on your body or the type of jewellery you want to wear. If you are unsure of what size piercing jewellery to get, we recommend calling your piercer to ask.

Standard piercing sizes

Piercing Standard Gauge Standard Length
Belly / Navel bar 14G 10mm
Nose Piercing 22G, 20G, 18G 11mm
Tongue Piercing 14G 16mm
Cartilage Piercing 16G , 18G 8mm, 9mm, 10mm
Eyebrow Piercing 16G 8mm, 12mm
Industrial Barbell 14G 35mm, 38mm
Labret, Lip Rings 16G or 14G 12mm, 14mm, 16mm
Beauty spot, Medusa Piercing 16G 10mm, 12mm, 14mm, 16mm
Nipple Piercing 14G 12mm, 14mm, 16mm
Tragus / Helix / Rook / Conch / Daith 16G , 18G 8mm, 9mm, 10mm
Septum 16G 8mm, 10mm
Ear 20G and 18G

Gauge to Millimeters Conversion


Gauge Inches Millimeters
22G .025 0.64mm
20G .032″ 0.81mm
18G .040″ 1.0mm
16G .050″ 1.2mm
14G .064″ 1.6mm
12G .082″ 2.0mm
10G .102″ 2.5mm
8G .125″ 3.0mm
6G .162″ 4.0mm
4G .204″ 5.0mm
2G .250″ 6.0mm
0G .312″ 8.0mm
00G .375″ 10.0mm

Length & Diameter Conversion


Inches Millimeters
3/16″ 4.7
1/4″ 6.4
5/16″ 8
3/8″ 9.5
7/16″ 11
1/2″ 13
9/16″ 14
5/8″ 16
3/4″ 19
7/8″ 22
15/16″ 24
1″ 25
1 1/2″ 38