Size Studio
UK Ring Size L in US, EU and mm
A UK (and Australian) ring size L is about a US 5.75 and an EU 51, with an inside diameter of about 16.3 mm (51.3 mm around).
| US / CA | UK / AU | EU (ISO) | Japan | Inside diameter | Inside circumference |
|---|---|---|---|---|---|
| 5.75 | L | 51 | 11 | 16.3 mm | 51.3 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: KLarger: MOpen the full converterHow to measure yourself
Questions
What is ring size L in mm?
About 16.3 mm inside diameter, 51.3 mm around.
What is UK ring size L in US?
About US 5.75.
What is ring size L in EU?
EU 51.
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