When talking about nose ring gauge, usually they mean the diameter of the nose ring.
Nose ring gauge varies from the smallest possible nose studs which have the size of 20 gauge which is only 0.8 mm, and endsâ€¦ well, each personâ€™s fantasy is the only limit setting the maximum nose ring gauge!
As we all know, the nose piercings can be stretched as well, and special plugs or tusks are inserted then.
But usually the nose rings come in either 20 or 18 gauge. In the chart below you can see the nose ring gauges and the respective size in millimeters and inches.