Pierced Jewellery Size Guide
There are many sizes of jewelry. Before buying new piercing jewelry, make sure you know the correct piercing size, length and diameter! How to choose the right size for you You need to know the following size information:
What is "Gauge"?
The "gauge" of your piercing is the thickness of the bar that goes through your piercing. The value of the unit is inversely proportional to the thickness of the jewellery, i.e. the larger the value the smaller the thickness.
Piercing Jewelry "Length"
The "length" of pierced jewelry refers to the "wearable" span of the barbell that passes through the piercing. It is measured from the top to the bottom of the straight or curved barbell, not including balls or charms.
Piercing Jewelry "Diameter"
The diameter is measured from the inside of the ring, which is the width of the ring at its largest point. The inside diameter is important when choosing ring barbell jewellery styles such as Circle Bead Ring (CBR) and Horseshoe Barbell.
Standard Pierce Sizes
|
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 | 1/4" , 5/16" and 3/8" |
| Industrial Barbell | 14G | 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 | 3/8", 7/16", 1/2", and 5/8" |
| Ear Lobe Piercings | 20G or 22G |
Tip：Standard piercing sizes are for reference only, ask your piercer for details.
Conversion Chart for Body Piercing Sizes
| Gauge to Inch | Gauges to Milimiter | Milimiter To Inch |
| 20G ---- .032" | 20G ---- 0.81mm | 0.81mm ---- .032" |
| 18G ---- .040" | 18G ---- 1.0mm | 1.0mm ---- .040" |
| 16G ---- .050" | 16G ---- 1.2mm | 1.2mm ---- .050" |
| 14G ---- .064" | 14G ---- 1.6mm | 1.6mm ---- .064" |
| 12G ---- .082" | 12G ---- 2.0mm | 2.0mm ---- .082" |
| 10G ---- .102" | 10G ---- 2.5mm | 2.5mm ---- .102" |
| 8G ---- .125" | 8G ---- 3.0mm | 3.0mm ---- .125" |
| 6G ---- .162" | 6G ---- 4.0mm | 4.0mm ---- .162" |
| 4G ---- .204" | 4G ---- 5.0mm | 5.0mm ---- .204" |
| 2G ---- .250" | 2G ---- 6.0mm | 6.0mm ---- .250" |
| 0G ---- .312" | 0G ---- 8.0mm | 8.0mm ---- .312" |
| 00G ---- .375" | 00G ---- 10.0mm | 10.0mm ---- .375" |