This guide breaks everything down in a simple, beginner-friendly way. Whether you’re shopping for ear gauge sizes, lip rings, or checking a gauge size chart, this is your easy place to start.
What Does “Gauge Size” Mean?
Gauge (G) is the measurement used to describe how thick piercing jewelry is.
It applies to lots of styles, including:
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Labret studs
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Hoop nose rings
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Cartilage studs
For safe, comfortable jewelry, you must know your correct gauge.
Gauge Sizes in Order (Smallest to Thickest)
Here is the basic gauge order:
20G → 18G → 16G → 14G → 12G → 10G → 8G → 6G → 4G → 2G → 0G → 00G

Remember:
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20G is thin like a normal stud earring.
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00G is thick and close to 10mm.
The lower the number → the thicker the jewelry.
Ear Gauge Sizes (in mm)
(SEO keyword included: Ear gauge sizes in mm)
| Gauge Size | Millimeters (mm) |
|---|---|
| 20G | 0.8mm |
| 18G | 1.0mm |
| 16G | 1.2mm |
| 14G | 1.6mm |
| 12G | 2.0mm |
| 10G | 2.4mm |
| 8G | 3.2mm |
| 6G | 4.0mm |
| 4G | 5.0mm |
| 2G | 6.0mm |
| 0G | 8.0mm |
| 00G | 10.0mm |
This is the same sizing system used for ear gauge sizes in order, gauge sizes jewelry, and body piercing jewelry charts.
Ear Gauge Size Chart (Explained Simply)
This chart helps beginners see the size jump between gauges:
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20G–16G → thin starter piercings (nose, lip, ear studs)
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14G–12G → common for cartilage, nipple, belly
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10G–8G → early stretch sizes
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6G–00G → advanced stretching levels
If you want me to make a visual “ear gauge size chart with pictures,” I can create one in your style.
What Jewelry Uses What Gauge?
Lip Piercing Jewelry (Double Lip Ring Piercing)
Most lip piercings use:
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16G (1.2mm)
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14G (1.6mm)
This includes:
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Labret studs
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Flat-back lip jewelry
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Double lip ring piercing combos
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Circular barbells
Standard Ear Piercings
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Normal earlobe: 20G or 18G
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Cartilage: 16G
Perfect for studs, hoops, and basic earrings.
Stretched Ears
If you're stretching, you’ll move through multiple gauge sizes slowly.
Use a gauge sizes chart so you don’t skip sizes.
How to Choose the Right Gauge
Here’s what I recommend:
✔ Ask your piercer (safest)
They know exactly what was used during your piercing.
✔ Check your current jewelry
If it fits well and doesn’t hurt, match that gauge.
✔ Don’t force thicker jewelry
That can tear your piercing and cause infections.
Can You Change Gauge Sizes Later?
Yes—but carefully.
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Going thinner: Easy, but can weaken the piercing over time
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Going thicker: Requires stretching and should be done slowly
Never force thicker jewelry into a healed piercing. If you’re unsure, a piercer can safely assess and size you.
Gauge vs Length vs Diameter (Quick Clarification)
These are often confused:
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Gauge → thickness of the post
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Length → straight bar length (measured in mm)
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Diameter → size of rings/hoops
All three matter for comfort and healing.
Common Gauge Size Mistakes
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Assuming all piercings use the same gauge
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Buying fashion jewelry without checking size
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Downsizing gauge instead of bar length
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Stretching too quickly
When in doubt, match the gauge you were originally pierced with.
Final Advice From a Piercer
Gauge size isn’t just a technical detail—it directly affects healing, comfort, and how long your piercing lasts.
If you remember one thing:
Always match your jewelry gauge to your original piercing size unless a professional advises otherwise.