Ring Size Converter → Chart → US size 11.5
US Ring Size 11.5
A US/Canada ring size 11.5 converts as follows across every major standard.
UK / AustraliaW½
Europe (ISO)66
Japan24
Diameter21.0 mm
Diameter0.83 in
Circumference65.9 mm
Not sure size 11.5 is right? Measure your finger or use the converter to check from a measurement.
Size 11.5 in context
| US | UK | EU | Japan | Diameter (mm) |
|---|---|---|---|---|
| 10.5 | U½ | 63½ | 22 | 20.2 |
| 11 | V½ | 65 | 23 | 20.6 |
| 11.5 ← | W½ | 66 | 24 | 21.0 |
| 12 | Y | 67½ | 25 | 21.4 |
| 12.5 | Z | 68½ | 26 | 21.8 |
FAQ
What is a US size 11.5 ring in UK sizes?
A US ring size 11.5 is a UK/Australia size W½. It also equals European size 66 and Japanese size 24.
What is the diameter of a size 11.5 ring?
A US size 11.5 ring has an inside diameter of 21.0 mm (0.83 inches) and an inside circumference of 65.9 mm.
Is a size 11.5 ring big or small?
Size 11.5 is on the larger side and common for men.