Size Chart

Plugs and Tunnels

The size indicated for plugs and tunnels represents the diameter at which the item sits in the ear (the size of your piercing hole).

For 'double-flared' plugs or tunnels, note that the actual end diameter of the item is larger than the diameter at which it sits in the ear. Typically, the flared part of the plug is 1mm to 1.5mm larger. The flare is essential for keeping the plug securely in place.

Please find the most common sizes below:

You could also refer to the size and conversion between various units of measurement outlined below:

Gauge Size	Diameter (Millimeter)	Diameter (Inches)
20g	0.8mm	1/32"
18g	1.0mm	5/128"
16g	1.2mm	3/64"
14g	1.6mm	1/16"
12g	2.0mm	5/64"
10g	2.5mm	3/32"
8g	3.2mm	1/8"
6g	4.0mm	5/32"
4g	5.0mm	3/16"
2g	6.0mm	1/4"
0g	8.0mm	5/16"
00g	10.0mm	3/8"
	11.0mm	7/16"
	12.0mm	1/2"
	14.0mm	9/16"
	16.0mm	5/8"
	18.0mm	5/32"
	19.0mm	3/4"
	20.0mm	25/32"
	22.0mm	7/8"
	25.0mm	1"
	26.0mm	1 1/32"
	28.0mm	1 7/64"
	29.0mm	1 1/8"
	30.0mm	1.18"
	32.0mm	1 1/4"
	34.0mm	1 5/16"
	35.0mm	1 3/8"
	36.0mm	1 1/16"
	38.0mm	1 1/2"
	41.0mm	1 5/8"
	44.0mm	1 3/4"
	48.0mm	1 7/8"
	51.0mm	2"

Important Notes: Please always refer to the individual product page for the final size selection, as some styles may vary.

How to choose your ear gauge size

Gauge sizing can be confusing because smaller gauge numbers represent larger openings. Use the millimeter measurement when comparing plugs, tunnels, and other jewelry for stretched ears.

Common size conversions

0g = 8mm
00g = 10mm
1/2 inch = 12mm
9/16 inch = 14mm
5/8 inch = 16mm

Shop by size and jewelry type

Frequently asked questions

What size is 0g in millimeters?

0g is 8mm in diameter.

What size is 00g in millimeters?

00g is 10mm in diameter.

Should I choose a plug or tunnel by gauge or millimeters?

Check both when available, but use the product page's listed diameter and size options for the final selection. Jewelry styles and flare measurements can vary.