Size Studio
UK Ring Size G in US, EU and mm
A UK (and Australian) ring size G is about a US 3.25 and an EU 45, with an inside diameter of about 14.3 mm (45 mm around).
| US / CA | UK / AU | EU (ISO) | Japan | Inside diameter | Inside circumference |
|---|---|---|---|---|---|
| 3.25 | G | 45 | 5 | 14.3 mm | 45 mm |
Good to know
- EU (ISO) ring sizes are the inside circumference in millimetres. US sizes go up about 0.8 mm in diameter per whole size, UK letters about 0.4 mm.
- Fingers swell when warm. Measure at the end of the day, and go half a size up for wide bands.
Sizes either side
Smaller: FLarger: HOpen the full converterHow to measure yourself
Questions
What is ring size G in mm?
About 14.3 mm inside diameter, 45 mm around.
What is UK ring size G in US?
About US 3.25.
What is ring size G in EU?
EU 45.
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