UK I in US Ring Size

UK I US 4.5
Also: ISO 48
Rings Size
Inner circumference:45.5–50.5mm

Size Chart

UK US ISO
F 3 44
G 3.5 46
H 4 47
I 4.5 48
J 5 49
K 5.5 51
L 6 52

Frequently Asked Questions

What is UK I in US rings size?
UK I converts to approximately US 4.5 in rings sizing.
How do I convert UK I to US?
UK I equals US 4.5. This conversion is based on standard sizing charts, but may vary by brand.
What ring size should I order if I'm UK I?
If your ring size is UK I, order US 4.5. When in doubt, go slightly larger as rings can be resized down.