The Comprehensive Guide to Ear Gauge Sizes, Plug Sizing, and More

If you are new to the world of ear gauges, you might find yourself overwhelmed by terms like "16g," "00g," or "plug sizing." Understanding these terms and converting between gauge sizes and mm or inches is crucial for both comfort and safety. In this guide, we'll cover the basics and beyond, from "0g in mm" to what comes after a "00 gauge for ears."

What is Gauge?

In the world of body jewelry and piercings, "gauge" refers to the thickness of the post or wire that goes through the pierced hole. Is 18g smaller than 16g? Yes, the larger the gauge number, the smaller the diameter of the wire. For example, an 18-gauge wire (often abbreviated as 18g) is smaller than a 16-gauge (16g) wire. The size in mm for an 18-gauge in mm is approximately 1.0mm, while 16g to mm converts to roughly 1.2mm.

Gauge Plug Sizes differ significantly, and it's important to know what your size is before trying to stretch your ears further. For example, the next size up from 00g is usually 7/16".

How to Measure Gauge

You can refer to our comprehensive gauge to mm and gauge to inches Ear Gauge to MM/Inches Size Chart below for an extensive look at sizes.

Quick Conversions

  • 2 mm to gauge: Approximately 12g
  • 7/16 gauges in mm: 11mm
  • 4mm gauge: Usually around 6g
  • 9/16 gauges in mm: 14.3mm
  • 16 g in mm: Roughly 1.2mm
  • What gauge is 7mm?: Around 1g
  • 16mm to gauge: 5/8"


Gauge Size Millimeters (MM) Inches
20g 0.8mm 1/32"
18g 1.0mm 1/25"
16g 1.2mm 3/64"
14g 1.6mm 1/16"
12g 2.0mm 5/64"
10g 2.4mm 3/32"
8g 3.2mm 1/8"
6g 4.0mm 5/32"
4g 5.0mm 3/16"
2g 6.5mm 1/4"
0g 8.0mm 5/16"
00g 10.0mm 3/8"
1/2" 12.7mm 1/2"
9/16" 14.3mm 9/16"
5/8" 16.0mm 5/8"

FAQ on Ear Gauge Sizing

What Comes After 00g?

The size after 00 gauges is usually 7/16". After that, sizes continue to go up usually by 1/16 of an inch increments or about 2mm increments.

What Gauge is 1.6mm?

A 1.6mm size corresponds to a 14-gauge earring, often seen with standard industrial piercings.

What is 0g in mm?

A 0g to mm conversion results in an 8mm thickness.

Is 14g Bigger Than 16g?

No, 14g is not bigger than 16g; in fact, it's the opposite. A 14g is thicker than a 16g.


Whether you're wondering "what size is 10mm" in gauges or what the size 16 gauge in mm is, understanding these measurements is essential for safe and comfortable body modification. We hope this guide, along with our detailed gauge size chart, provides you with all the information you need on gauge sizes, conversion gauge to inch, and piercing gauge chart needs. Happy stretching!