EAR PIERCINGS SIZE GUIDE

Last Updated 10/07/2026 | Written by Maëlys Chamard, Co-Founder of MADAJ

Wrong jewelry size is the most common, and most avoidable, reason a piercing feels irritated instead of forgettable. Every ear is shaped differently, which is why MADAJ offers a full range of post lengths and hoop diameters for each placement, so your piece fits your anatomy from day one instead of just "close enough."

Get the size right, and you also unlock the kind of layered, curated ear look that only works when every piece actually sits where it should.

• Sizing for a fresh piercing: Choose a slightly larger size to allow room for initial swelling
• Sizing once healed: Many people size down for a snugger, more refined fit
• Post length range: 5mm to 11mm, depending on placement
• Hoop diameter range: 5mm to 12.5mm, depending on placement

Not sure of your size? Ear anatomy varies person to person, so confirm with your piercer before ordering

Discover the perfect size for your ear piercing :

• Antitragus: 6.5 mm
• Conch: 6.5 mm
• Contraconch: 6.5 mm
• Forward Helix: 5 mm
• Helix: 5 mm - 6.5 mm
• 1st Lobe: 5 mm
• 2nd Lobe: 5 mm
• 3rd Lobe & Up: 5 mm
• Tragus: 5 mm - 6.5 mm

Please be aware that the post length sizes mentioned in this guide are indicative and can vary depending on the unique anatomy of each individual's ears. We recommend considering your personal ear structure to determine the most comfortable and suitable post length for your piercings.

Getting a fresh piercing? It's common to start with a slightly longer post to allow room for initial swelling, then size down for a snugger fit once fully healed. Your piercer can help confirm the right choice at each stage.

Stud & threaded earring post lengths:

Selecting the appropriate post length ensures a perfect fit and can enhance the overall look of the earring.

Common lengths available at MADAJ Piercings include, but are not limited to, sizes such as 5 mm, 6.5 mm, 8 mm, 9.5 mm, and 11 mm. While most placements start at 5mm or 6.5mm, larger lengths like 8mm, 9.5mm, and 11mm are available for anatomies that need extra room, or for those who prefer a slightly looser fit even once healed.

How is stud post length measured?

Post length is measured from where the post begins at the back to its front end, not including the decorative front piece. It's a different measurement from gauge, which refers to the post's thickness rather than its length: MADAJ stud posts use a 1.2 mm (16 gauge) diameter, the standard for ear piercings. Post length itself varies by placement and by individual anatomy.

Why does post length matter?

Getting it right affects both comfort and appearance. A post that's too short presses the back against the skin, creating pressure and irritation, especially on a healing piercing. A post that's too long leaves extra room behind the ear, which can cause the jewelry to rotate, snag on hair or clothing, or sit unevenly instead of flush.

Two popular options among our MADAJ Piercings collections are threaded studs and traditional studs, and the right pick depends on where your piercing is and how you plan to wear it.

Threaded studs use an internally threaded flat back: the threading sits inside the post itself, so the decorative front screws securely into it rather than snapping into place. This means no exposed threading touches your skin, which is why they rarely loosen or fall out and stay comfortable 24/7, making them the go-to for cartilage piercings like the helix, tragus, and rook.

Traditional studs use a simple push or friction back, often called a butterfly back, the classic style most people grew up with. They're quick to put on and take off, making them a popular choice for a first lobe piercing.

• Antitragus Hoop Earrings: 6.5 mm
• Conch Hoop Earrings: 11 mm
• Contraconch Hoop Earrings: 9.5 mm
• Forward Helix Hoop Earrings: 5 mm
• Daith Hoop Earrings: 8 mm
• Helix Hoop Earrings: 6.5 mm - 8 mm
• 1st LOBE: 8 mm - 9.5 mm
• 2nd LOBE: 6.5mm - 8mm
• 3rd LOBE & UP: 6.5mm - 5mm
• ROOK: 5 mm - 6.5 mm
• TRAGUS: 5 mm - 6.5 mm

Please note: Hoop sizes are provided as a general guide, since individual ear anatomy varies. If you're unsure which diameter fits your piercing, your piercer can measure you directly, or you can reference a hoop you already wear comfortably in that placement as a starting point.

What hoop size should I get for my piercing?

The diameter of a hoop earring is typically measured across its innermost part, not the outer edge, and it plays a significant role in both comfort and appearance. Too small, and the hoop can press against the piercing; too large, and it can hang loosely, catch on hair or clothing, or shift out of position throughout the day.

Diameter isn't the only measurement that matters, though. Gauge, the thickness of the wire itself, is a separate spec worth knowing. MADAJ hoops use a post diameter of 0.8 mm (20 gauge), giving a fine, comfortable fit against the ear.

For diameter, while sizes like 6.5 mm and 8 mm are the most popular, choices range from smaller options at 5 mm up to larger ones at 9.5 mm, 11 mm, and beyond. Choosing the right size often comes down to personal preference, shaped as much by current fashion trends as by your own individual style.

A millimeter looks different on paper than it does on an ear. See all six sizes, 5mm to 14mm, worn side by side above, so you know exactly what you're choosing before you order.

Every millimeter changes the look. Browse each hoop diameter below, worn on a real ear, to see exactly how subtle or statement-making your size choice really is. Ear anatomy and personal style still play a role, so treat these as a true-to-scale starting point rather than a guarantee.

5mm hoop piercing: the smallest size in our range, sitting close to the ear for a minimal, everyday look.

6.5mm hoop piercing: one of our most popular sizes, offering a bit more visibility while still being versatile for daily wear.

8mm hoop piercing: a mid-range size with a clearly visible profile, well suited for placements like the conch.

9.5mm hoop piercing: a larger size that stands out more on the ear, popular for a bolder, more noticeable look.