Jewellery
Body Jewellery Gauge Size Chart
This Body Jewellery Gauge size chart covers 4 sizes (18G – 12G) across 3 measurements: gauge/thickness, inner diameter and wearable length. Values are in millimetres, and you can switch the table to centimetres.
Size chart
| Common Size | Gauge (mm) | Inner Diameter (mm) | Wearable Length (mm) |
|---|---|---|---|
| 18G | 1.0 | 8 | 6 |
| 16G | 1.2 | 10 | 8 |
| 14G | 1.6 | 10 | 10 |
| 12G | 2.0 | 12 | 12 |
Fit tip
Match the gauge, inner diameter and length to your current jewellery — a piercer can confirm your gauge if you’re unsure.
How to measure

- AGauge/Thickness
Measure the thickness of the wire or post — thinner numbers mean thicker metal.
- BInner Diameter
Measure straight across the inside, from one inner wall to the opposite wall.
- CWearable Length
Measure this part straight across at its widest point.
About these measurements: they're typical values for this kind of product, meant as a starting point. Every brand's fit is different, so adjust them to match your own garments before publishing.


