US Ring Size 7 in mm (Diameter & Circumference)
US ring size 7 = 17.32 mm inner diameter, 54.4 mm circumference (UK N½, EU 54.5, JP 14)
| US/CA | UK/AU | EU/ISO | JP | Diameter | Circumference |
|---|---|---|---|---|---|
| 6 | L½ | 52 | 12 | 16.51 mm | 51.9 mm |
| 6.5 | M½ | 53 | 13 | 16.91 mm | 53.1 mm |
| 7 | N½ | 54.5 | 14 | 17.32 mm | 54.4 mm |
| 7.5 | O½ | 55.5 | 15 | 17.73 mm | 55.7 mm |
| 8 | P½ | 57 | 16 | 18.13 mm | 57 mm |
FAQ
What is ring size 7 in mm?
About 17.32 mm across the inside, 54.4 mm around.
What is US 7 in UK size?
About N½.
Related
Sizes vary by brand and seller. Always check the product's own size chart and measure yourself; this chart is a general standard guide.