Ring Sizes

To help you with conversion of ring sizes, we have produced the following table. Please note that the 'Measurement in mm' value applies to the internal circumference of the ring.

UK Ring Size
Measurement in mm
D
41
E
43
F
44
G
45
H
46
I
47
J
49
K
50
L
51
M
52
N
54
O
55
P
56
Q
57
R
59
S
60
T
61
U
62
V
63
W
65
X
66
Y
67
Z
69
Z+1
70
Z+2
71
Z+3
73