Everyone’s body is different, and sometimes piercers will use different lengths and gauges depending on your body or the type of body jewelry you want to wear.
We’ve provided a list of industry standard sizes for body jewelry used for each piercing. However, we cannot guarantee that the size on our chart is the size used for your specific piercing. What you will find below are the standard gauges and lengths or diameters used by professional piercers.
If you are unsure of what size piercing jewelry to get, we recommend calling or visiting your piercer to ask them.
Standard Piercing Sizes
See our chart below and discover the perfect fit for your body piercing:
Piercing
Standard Gauge
Standard Length
Belly Button / Navel Ring
14G
3/8″ , 7/16″
Nose Piercing
20G , 18G
1/4″ , 5/16″
Tongue Piercing
14G
5/8″
Cartilage Piercings (Helix, Forwad Helix, Tragus)
16G , 18G
3/16″ , 1/4″ and 5/16″
Eyebrow Piercing
16G (14G is also commonly used)
1/4″ , 5/16″ and 3/8″
Industrial Barbell
14G (16G is also commonly used)
1 1/2″ (varies)
Labret Lip Rings
14G or 16G
1/4″ , 5/16″, and 3/8″
Monroe Piercing
16G
1/4″ , 5/16″ and 3/8″
Nipple Piercing
14G
3/8″ , 1/2″, 9/16″
Rook / Conch / Daith
16G , 18G
3/16″, 1/4″ , 5/16″ and 3/8″
Septum
14G (16G is also commonly used)
3/8″, 7/16″, 1/2″, and 5/8″
Ear Lobe Piercings
20G or 22G
Gauge To Inches & Millimeters Conversions
Gauge
Inches
Millimeters
22G
0.025
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
Sizing Piercing Jewelry
When shopping for the perfect piece of body piercing jewelry you’ll need to know what size you need. Here’s the piercing jargon to help you out.
Gauge
The “gauge” 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 20 gauge (20G) barbell.
Length
The “length” of your piercing jewelry refers to the wearable length of the barbell that goes through your piercing. It is measured from the top to the bottom of the straight barbell and does not include the balls or charms. Keep scrolling down to see how it’s measured exactly.
Diameter
Diameter is used to measure the size of round barbells like hoops, captives, clickers, seam rings, and circulars. It is measured from the inner and widest point of the circle.
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