Ring Size Converter → Chart → US size 8
US Ring Size 8
A US/Canada ring size 8 converts as follows across every major standard.
UK / AustraliaP½
Europe (ISO)57
Japan16
Diameter18.1 mm
Diameter0.71 in
Circumference57.0 mm
Not sure size 8 is right? Measure your finger or use the converter to check from a measurement.
Size 8 in context
| US | UK | EU | Japan | Diameter (mm) |
|---|---|---|---|---|
| 7 | N½ | 54 | 13 | 17.3 |
| 7.5 | O½ | 55½ | 14 | 17.7 |
| 8 ← | P½ | 57 | 16 | 18.1 |
| 8.5 | Q½ | 58 | 17 | 18.5 |
| 9 | R½ | 59½ | 18 | 19.0 |
FAQ
What is a US size 8 ring in UK sizes?
A US ring size 8 is a UK/Australia size P½. It also equals European size 57 and Japanese size 16.
What is the diameter of a size 8 ring?
A US size 8 ring has an inside diameter of 18.1 mm (0.71 inches) and an inside circumference of 57.0 mm.
Is a size 8 ring big or small?
Size 8 is a mid-range size, common for women and smaller-fingered men.