Guide to Earring Gauge Sizes

Shopping for earrings can be confusing. Especially when you see numbers like 18G or 16G without knowing what they mean. This guide will help you understand earring gauge sizes. Whether you just got a new ear piercing or you’re shopping for flatback earrings, knowing the right size is key.  

Let’s break down what a gauge is, how the sizes work, and how to pick the best fit for your ears.  

What Is an Earring Gauge?  

The term “gauge” refers to the thickness of the earring post or shaft. It’s the part of the jewellery that passes through your piercing.  

Here’s the twist: gauge sizing works in reverse. The higher the number, the thinner the post. So, an 18G earring is narrower than a 14G.  

This sizing system comes from the wire manufacturing industry. It was originally used to measure metal wire thickness. Jewellers now use it to size body jewellery, too.  

Why does gauge matter? Because your piercing hole adapts to the size of the jewellery you wear. Using the wrong size can cause discomfort, damage, or affect healing.  

Earring Gauge Size Chart  

Here's a comprehensive conversion table showing how gauge numbers translate to millimetres and inches:

Most people find it easier to think in millimetres. A standard earlobe piercing is typically 0.8mm to 1.0mm thick. That's 20G to 18G in gauge measurements.

Standard Earring Gauges by Piercing Type  

Different piercings suit different gauge sizes. Here’s a quick reference to help you pick the right one based on your ear piercing.  

Earlobe piercings are the most common and typically use the thinnest gauges. Cartilage piercings often use slightly thicker gauges for stability and healing. Industrial piercings use thicker gauges because they need to support the weight of longer barbells.

Post length matters too. Freshly pierced ears need longer posts to accommodate swelling. Healed piercings can use shorter posts for a more comfortable fit.

Always consult a piercer if you’re unsure. 

Choosing the Right Gauge for Your Piercing  

Selecting the correct gauge depends on several factors. Your piercing's age, location, and personal preferences all play a role.

Fresh Piercings vs. Healed Piercings

Fresh piercings need specific gauge sizes recommended by your piercer. Don't change the gauge during healing. This can cause trauma and delay the healing process.

Most professional piercers use 18G or 16G for new earlobe piercings. They choose based on your anatomy and the type of jewellery you'll wear long-term.

Healed piercings offer more flexibility. You can often wear slightly thinner gauges without problems. However, going much thicker requires gradual stretching by a professional.

Aesthetic & Comfort Considerations

Thinner gauges create a delicate, subtle look. They work well for multiple piercings or minimalist styles. Thicker gauges make more of a statement and can support heavier jewellery designs.

Comfort is crucial for daily wear. Very thin gauges can feel flimsy and may catch on clothing or hair. Very thick gauges can feel heavy and cumbersome for all-day wear.

Consider your lifestyle too. Active people often prefer secure-fitting jewellery that won't fall out easily. Those with sensitive skin might need hypoallergenic materials in specific gauges.

Jewellery Materials and Their Fit  

Different materials behave differently at each gauge. 

Titanium works well in all gauge sizes. It's lightweight, hypoallergenic, and strong. Thin titanium posts feel comfortable and won't irritate sensitive piercings.

Surgical steel is durable and affordable. It feels heavier than titanium, especially in thicker gauges. Some people react to the nickel content in lower-grade steel.

Sterling silver looks beautiful and lightweight. It's softer than steel or titanium, making it less suitable for very thin gauges that need strength.

Gold (14k or 18k) is hypoallergenic and attractive. Solid gold is expensive but worth it for people with metal sensitivities. Gold-plated jewellery can wear off over time.

Silicone is flexible and comfortable. It's mainly used for thicker gauges and isn't suitable for healing piercings. Some people find silicone irritating for long-term wear.

Choose quality materials to avoid irritation, infection, or metal allergies.  

Real-Life Gauge Size Examples  

FAQs About Earring Gauge Size  

Can I downsize a piercing?  

Yes, you can often wear thinner jewellery in a healed piercing. The hole won't shrink immediately, but it may close slightly over time. Going from 18G to 20G is usually no problem. Larger jumps might cause the jewellery to feel loose or fall out.

What size should I start with?  

For new earlobe piercings, most piercers use 18G or 20G. This creates a hole that's large enough for quality jewellery but small enough to heal well. Your piercer will choose the best size for your anatomy and jewellery preferences.

Is 16G or 18G better for cartilage piercings?  

Both are common. 16G is slightly thicker and more durable. 18G is thinner and may suit those who prefer a daintier look. Go with the recommendation of your piercer or based on your current jewellery.  

Does gauge size affect healing?  

Yes. Thicker jewellery (like 16G) often promotes smoother healing as it's less prone to twisting or bending. But thinner jewellery (like 20G) can feel gentler for daily wear.  

Can I wear 18G earrings in a 16G hole?  

Usually, yes. A slightly smaller post in a larger hole won’t cause much issue if the piercing is healed. But the earring might move more and feel less secure.  

Will thicker gauge jewellery hurt more?

Not necessarily. Properly fitted jewellery in the right gauge should feel comfortable. Pain usually comes from poor-quality materials, incorrect sizing, or trying to force jewellery that doesn't fit properly.

Can I mix different gauge sizes in my ears?

Absolutely. Many people wear different gauges in different piercings. You might have 20G studs in your second holes and 18G hoops in your first holes. Just make sure each piece fits its specific piercing properly.

Conclusion

Understanding earring gauge sizes helps you find safe, comfortable, and stylish jewellery.  

It’s not just about fashion, it’s about fit and comfort. A proper gauge keeps your piercing healthy and your jewellery secure.  

Once you're confident in your size, shopping becomes easier, and far more enjoyable.