Piercing Size Guide (Gauge & Length)

Piercing Size Guide (Gauge & Length)

There are many types of body piercings and uses for them which can make their measurements confusing. Here is a breakdown of the measurements, what they mean, and the common sizes for each piercing:

What does gauge mean? 

Gauge refers to the thickness of a piercing (pictured below). As the number increases, the thickness decreases (i.e. 16ga is thicker than 20ga). The gauge of a particular piercing will depend on whether you were pierced with a gun or a needle. Always be sure to ask your piercer what gauge you are being pierced with. 

20ga= 0.8mm 






Standard Gauges:

14ga: Belly ring (pictured below), industrial, nipple ring and tongue ring

16ga: tragus,anti-tragus, helix, rook, daith, snug, flat, conch, septum, monroe/ labret (lip piercing) and eyebrow piercings.

18ga: Slightly thinner than 16ga- can be used for nose piercings and as a thinner option for piercings on the ear. (in between size)

20ga: Earrings, nose stud and nose hoops

22ga: Earrings, nose studs and nose hoops (thinnest option available) 





About Lengths

Length refers to how long the piercing is. It is super important to select the correct length in order to ensure there is enough space to comfortably wear your piercing. The length does not include the gem, balls, or piercing backing. 

Standard/ Commonly Used Lengths: 

  • Belly Rings: 10mm ( 3/8”)

  • Tongue Piercing: 16mm (5/8”)

  • Nipple Piercing: Ranges from 12mm (1/2” ) to 16mm (5/8”), with 16mm (5/8”) being most commonly used. 

  • Industrial Piercing: Varies depending on the size of the ear

  • Tragus/Helix/Conch/ Rook/ Daith: 6mm-10mm 

  • Lip Piercings/ Labret/ Monroe: 8mm-10mm 

  • Septum: 6mm-10mm 


When deciding which length to purchase, please consider the following: 

-Has my piercing fully healed? If you attempt to measure the piercing you are wearing while it is still healing you may get an incorrect measurement. It is always best to wait until a piercing is fully healed before deciding to change it. 

-The length measurement we provide includes only the post of the item. The measurement does NOT include the top piece or the backing. 

-If your piercing has fully healed, what length are you currently wearing? It is always best to check with your piercer to determine the length of the item you were pierced with. 

-Do you feel you need more or less space than what you currently have? 

Diameter refers to the measurement of the inner wearable surface of an item. 

Commonly Used Diameters:

  • Helix Piercings: 8mm-10mm

  • Conch Piercings: 10mm-12mm

  • Septum: 8mm-10mm 

  • Nose Hoops: 7mm-11mm 

When deciding which diameter will be most suitable for your piercing, please consider the following: 

-What is the diameter of your current piercing? 

-Where are you pierced? Specifically, how much space will need for the piercing to go through and still sit comfortably? You want to make sure the size will not be too small or too large as this can irritate your piercing. You can even measure the amount of space from your piercing hole to the edge of the particular body part you are pierced on (i.e. ear or nose) with a ruler, if necessary.  

Gem/Ball size is another factor to consider when choosing a piercing. Our gem/ball sizes range depending on the type of piercing. 

Nose Studs: 

1.5mm (Extremely small) 

2mm (average)

3mm (large)

4mm (very large) 


  • 2mm & 3mm are very dainty and would likely be worn as 2nd or 3rd lobe piercings

  • 4mm-6mm are great options for 1st lobe piercings

  •  7mm-10mm are suitable if you like to wear a larger stud in your 1st lobe piercing

Other Piercings on the Ear: 

  • For other piercings on the ear, such as the tragus, helix, conch etc. the gem size you choose really depends on the look you are going for. Pictured on the left are the 2mm and 3mm gems and pictured on the right are the 2mm, 3mm and 4mm gems for reference. 

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