Size Studio
UK Ring Size T in US, EU and mm
A UK (and Australian) ring size T is about a US 9.75 and an EU 61, with an inside diameter of about 19.5 mm (61.3 mm around).
| US / CA | UK / AU | EU (ISO) | Japan | Inside diameter | Inside circumference |
|---|---|---|---|---|---|
| 9.75 | T | 61 | 20 | 19.5 mm | 61.3 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: SLarger: UOpen the full converterHow to measure yourself
Questions
What is ring size T in mm?
About 19.5 mm inside diameter, 61.3 mm around.
What is UK ring size T in US?
About US 9.75.
What is ring size T in EU?
EU 61.
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