UK to US Ring Size Conversion Chart

US and EU sizes comparisons, accurate to within approximately 1/4 of a finger size.

UK SizeApprox US SizeApprox EU Size
C 1 3/4 40 1/2
D 2 1/4 41 1/2
E 2 3/4 42 3/4
F 3 1/4 44 1/2
G 3 3/4 45 1/2
H 4 1/4 46 1/2
I 4 3/4 47 3/4
J 5 1/4 49 1/2
K 5 1/2 50 1/4
L 6 51 1/2
M 6 1/2 52 1/2
N 7 54
UK SizeApprox US SizeApprox EU Size
O 7 1/2 55 1/4
P 8 56 1/4
Q 8 1/2 57 1/2
R 8 3/4 58 1/2
S 9 1/2 60 1/4
T 9 3/4 61 1/2
U 10 1/4 62 1/2
V 10 3/4 63 3/4
W 11 1/4 65 1/4
X 11 3/4 66 1/4
Y 12 1/4 67 1/2
Z 12 3/4 68 3/4
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