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Rings size guide

Our size charts are produced by brand to help you make an informed purchase everytime.

Inch measurements on the chart are derived from centimetre body measurements and are rounded to the nearest quarter inch.

UK INSIDE CIRCUMFERENCE (ins) INSIDE CIRCUMFERENCE (mm) UK INSIDE CIRCUMFERENCE (ins) INSIDE CIRCUMFERENCE (mm)
 
A 1.488 37.8 Small - K-L 1.991 50.6
A1/2 1.513 38.4 Medium - N 2.116 53.8
B 1.539 39.1 Large - P 2.217 56.3
B1/2 1.564 39.7 One Size - N-O 2.141 54.4
C 1.589 40.4
C1/2 1.614 41
D 1.639 41.6
D1/2 1.664 42.3
E 1.689 42.9
E1/2 1.714 43.5
F 1.74 44.2
F1/2 1.765 44.8
G 1.79 45.5
G1/2 1.815 46.1
H 1.84 46.7
H1/2 1.865 47.4
I 1.89 48
J 1.915 48.7
J1/2 1.941 49.3
K 1.966 49.9
K1/2 1.991 50.6
L 2.016 51.2
L1/2 2.041 51.8
M 2.066 52.5
M1/2 2.091 53.1
N 2.116 53.8
N1/2 2.141 54.4
O 2.167 55
O1/2 2.192 55.7
P 2.217 56.3
P1/2 2.242 56.9
Q 2.267 57.6
Q1/2 2.292 58.2
R 2.317 58.9
R1/2 2.342 59.5
S 2.368 60.1
S1/2 2.393 60.8
T 2.418 61.4
T1/2 2.443 62.1
UK 2.468 62.7
U1/2 2.493 63.3
V 2.518 64
V1/2 2.543 64.6
W 2.569 65.2
W1/2 2.594 65.9
X 2.619 66.5
X1/2 2.644 67.2
Y 2.669 67.8
Z 2.694 68.4
Z1/2 2.719 69.1
Z1 2.769 70.3
Z2 2.82 71.6
Z3 2.845 72.3
Z4 2.895 73.5