Piercing Measurement

To help you understand our product sizing accurately, we use both the Metric and Imperial measurement system.

Metric is in millimeters (mm)

Imperial is in gauges (ga) and inches (")

For your convenience, we provide all our piercing specifications in both systems throughout our product catalog online and printed. Please refer to our conversion chart shown for easy reference.

Gauges Metric
22ga - 0.6mm
20ga - 0.8mm
18ga - 1.0mm
16ga - 1.2mm
14ga - 1.6mm
12ga - 2.0mm
10ga - 2.5mm
8ga - 3.2mm
6ga - 4.1mm
4ga - 5.1mm
2ga - 6.5mm
0ga - 8.2mm
00ga - 9.2mm

Piercing Sizes

Piercings are measured by thickness, diameter and width.

Piercing Rings are measured by the internal diameter.

Septum Clickers are measured by the pin thickness and the internal height.

Straight and curved barbells are measured by the linear width between ball to ball.

  1. Wire size is indicated in ga or mm (please refer to red markings)
    It refers to the diameter size of the stem (thickness of the wire). We indicate this size in gauge and millimeter. For example; 14GA (1.6MM)
  2. Size (length) is indicated only in mm (please refer to green markings)
  3. Balls or spikes and all other attachments are indicated only in mm (please refer to blue markings)

General Sizing Guidelines

Ear stud pins are standard in 0.8 mm

Nose piercings are standard in 0.8 or 1.0 mm

Eyebrow piercings are standard in 1.2 mm

Labrets are most common in 1.2 mm but 1.6 mm is also available

Septum piercings are most common in 1.2 mm but 1.6 mm is also available

Industrial barbell, nipple, tongue and navel piercings are most common in 1.6 mm

BALL SIZE
Metric Inches
2.0 mm 5/64"
2.5 mm 3/32"
3.0 mm 1/8"
4.0 mm 5/32"
5.0 mm 3/16"
6.0 mm 1/4"
8.0 mm 5/16"
10.0 mm 3/8 "
12.0 mm 1/2"
LENGTH DIAMETER
Metric Inches
4.5 mm 3/16"
6.0 mm 7/32"
7.0 mm 9/32"
8.0 mm 5/16"
9.0 mm 11/32"
10.0 mm 13/32"
11.2 mm 7/16"
12.0 mm 15/32"
14.0 mm 9/16"
15.0 mm 19/32"
16.0 mm 5/8"
18.0 mm 11/16"
19.0 mm 3/4"
20.0 mm 25/32"
22.0 mm 7/8"
24.0 mm 15/16"
25.0 mm 1"
26.0 mm 1 1/32"
29.0 mm 1 5/32"
30.0 mm 1 3/16"
32.0 mm 1 9/32"
34.0 mm 1 11/32"
35.0 mm 1 13/32"
36.0 mm 1 7/16"
38.0 mm 1 1/2"
40.0 mm 1 19/32"
44.0 mm 1 25/32"
50.0 mm 2"

Internal Threading

All our internally threaded items use the specification shown below

Wire/Stem Size Internal Thread
1.6 mm 1.2 mm
1.2 mm 0.8 mm
1.0 mm 0.8 mm

Attachments are compatible throughout our entire collection.

Please Note :

0.8 mm is the standard for most European suppliers but some USA suppliers may prefer 0.9 mm as their standard. If you are not sure, please check with your supplier or with us.