Size Studio
Ring Size 7 in UK, EU and Inside Diameter (mm)
A US (and Canadian) ring size 7 is a UK N½ and an EU 54, with an inside diameter of about 17.3 mm (54.4 mm around).
| US / CA | UK / AU | EU (ISO) | Japan | Inside diameter | Inside circumference |
|---|---|---|---|---|---|
| 7 | N½ | 54 | 14 | 17.3 mm | 54.4 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: 6.5Larger: 7.5Open the full converterHow to measure yourself
Questions
What is ring size 7 in mm?
About 17.3 mm inside diameter, 54.4 mm around.
What is ring size 7 in UK?
UK N½.
What is ring size 7 in EU?
EU 54.
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