Ring Size Converter → Chart → US size 7.5
US Ring Size 7.5
A US/Canada ring size 7.5 converts as follows across every major standard.
UK / AustraliaO½
Europe (ISO)55½
Japan14
Diameter17.7 mm
Diameter0.70 in
Circumference55.7 mm
Not sure size 7.5 is right? Measure your finger or use the converter to check from a measurement.
Size 7.5 in context
| US | UK | EU | Japan | Diameter (mm) |
|---|---|---|---|---|
| 6.5 | M½ | 53 | 12 | 16.9 |
| 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 |
FAQ
What is a US size 7.5 ring in UK sizes?
A US ring size 7.5 is a UK/Australia size O½. It also equals European size 55½ and Japanese size 14.
What is the diameter of a size 7.5 ring?
A US size 7.5 ring has an inside diameter of 17.7 mm (0.70 inches) and an inside circumference of 55.7 mm.
Is a size 7.5 ring big or small?
Size 7.5 is a mid-range size, common for women and smaller-fingered men.