Size Studio
UK Ring Size Q in US, EU and mm
A UK (and Australian) ring size Q is about a US 8.25 and an EU 58, with an inside diameter of about 18.3 mm (57.5 mm around).
| US / CA | UK / AU | EU (ISO) | Japan | Inside diameter | Inside circumference |
|---|---|---|---|---|---|
| 8.25 | Q | 58 | 17 | 18.3 mm | 57.5 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: PLarger: ROpen the full converterHow to measure yourself
Questions
What is ring size Q in mm?
About 18.3 mm inside diameter, 57.5 mm around.
What is UK ring size Q in US?
About US 8.25.
What is ring size Q in EU?
EU 58.
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