Piercing Size Guide

Typical Hoop Sizes by Piercing

*Typical sizes are a guide only. Piercing placement and anatomy vary, so your ideal diameter may differ. Where possible, measure jewellery that already fits comfortably.

Gauge / Thickness

Internal Diameter

How Do I Measure a Hoop?

Ring size is measured across the inside of the hoop. Gauge refers to the thickness of the jewellery itself.

Typical Flat Back Sizes by Piercing

*Typical sizes are a guide for healed piercings only. Anatomy and piercing placement vary, so your ideal post length may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.

Gauge / Thickness

Bar / Post Length

How Is a Flat Back Stud Measured?

Bar length is measured along the wearable post only, not including the decorative top or flat back.

Typical Sizes for Earlobe Stud Earrings

*Typical sizes are a guide for healed earlobe piercings only. Anatomy, piercing placement and earlobe thickness vary, so your ideal post length may differ. Where possible, measure an earring that already fits comfortably.

Gauge / Post Thickness

Post Length

Butterfly Back Earrings

Butterfly back earrings use a traditional straight post with a push-on backing. The butterfly back slides onto the post and can usually be positioned to give a comfortable fit behind the earlobe.

The post should leave enough room for the earlobe without feeling tight or pressing into the skin.

Threaded / Screw Back Earrings

Threaded earrings use a backing that screws onto the end of the post rather than pushing into place. This gives the earring a secure closure and can help reduce the chance of the backing coming loose during everyday wear.

These may also be described in the product specifications as externally threaded. Always check the individual product details for the exact gauge and post length, as these can vary between designs.

How Is a Stud Earring Measured?

Post length is measured from the back of the decorative front to the end of the wearable earring post.

The decorative front and butterfly or screw-on backing are not included in the post length measurement.

Typical Belly Jewellery Sizing

*Sizes are a guide for healed piercings only. Anatomy and piercing depth vary, so your ideal fit may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.

Gauge / Thickness

Curved Belly Barbells

Hinged Belly Rings

How Is Belly Jewellery Measured?

Curved belly barbells: Length is measured along the wearable section of the curved bar between the top and bottom attachments. Decorative ends are not included in the measurement.

Hinged belly rings: Ring size is measured across the inside of the ring. This is the inside space of the ring, not the outside edges.

Typical Nostril Jewellery Sizing

*Typical sizes are a guide for healed nostril piercings only. Anatomy and piercing placement vary, so your ideal size may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.

Gauge / Thickness

Nose Stud Length

Nostril Hoop Diameter

How Is Nose Jewellery Measured?

Nose studs: Gauge refers to the thickness of the post. Post length refers to the wearable section of the jewellery.

Nostril hoops: Gauge refers to the thickness of the ring, while diameter is measured across the inside of the hoop.

Eyebrow, Tongue, Nipple & Industrial Barbell Sizing

*Typical sizes are a guide for healed piercings only. Anatomy, piercing placement and piercing depth vary, so your ideal bar length may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.

Gauge / Thickness

Standard Bar Length

Nipple Barbell Sizing

How Is Barbell Length Measured?

Straight barbells: Measure the wearable bar between the two balls or attachments. Do not include the balls or decorative ends in the measurement.

Curved barbells: Measure the wearable section of the curved bar between the two attachments.

Nipple barbells: Measure the wearable straight bar between the two ends. For decorative nipple shields or specialised designs, check the product specifications because the wearable length can differ from the overall bar measurement.