Ring Size Chart

Choosing the right ring size has never been easier. Our chart provides precise measurements in both circumference and diameter, making it simple to match your size with confidence.

Designed for quick reference, it’s the perfect guide whether you’re measuring at home or confirming a size for a special gift. With this chart, you’ll always find the perfect fit.

 

UK, Australia, New Zealand, Ireland USA, Canada Japan, Singapore Italy, Spain, Netherlands, Switzerland Europe Inside Diameter (mm) Circumference (mm)
F 1/2 3 4 4 44 14.1 44.2
G 3.25 5 5 1/2 45 14.3 44.8
G 1/2 3.50 14.5 45.5
H 3.75 6 6 1/2 46 14.7 46.1
H 1/2 4 7 47 14.9 46.8
I 4.25 7 1/2 15.1 47.4
I 1/2 4.50 8 48 15.3 48.0
J 4.75 9 15.5 48.7
J 1/2 5 9 49 15.7 49.3
K 5.25 10 50 15.9 50.0
K 1/2 5.50 10 16.1 50.6
L 5.75 11 1/2 51 16.3 51.2
L 1/2 6 11 12 1/2 52 16.5 51.9
M 6.25 12 16.7 52.5
M 1/2 6.50 13 14 53 16.9 53.1
N 6.75 17.1 53.8
N 1/2 7 14 15 1/2 54 17.3 54.4
O 7.25 55 17.5 55.1
O 1/2 7.50 15 16 1/2 17.7 55.7
P 7.75 56 17.9 56.3
P 1/2 8 16 17 1/2 57 18.1 57.0
Q 8.25 18.3 57.6
Q 1/2 8.50 17 58 18.5 58.3
R 8.75 19 59 18.8 58.9
R 1/2 9 18 19.0 59.5
S 9.25 20 1/2 60 19.2 60.2
S 1/2 9.50 19 61 19.4 60.8
T 9.75 21 1/2 19.6 61.4
T 1/2 10 20 62 19.8 62.1
U 10.25 21 20.0 62.7
U 1/2 10.50 22 22 1/2 63 20.2 63.4
V 10.75 64 20.4 64.0
V 1/2 11 23 20.6 64.6
W 11.25 25 65 20.8 65.3
W 1/2 11.50 24 66 21.0 65.9
X 11.75 21.2 66.6
X 1/2 12 25 27 1/2 67 21.4 67.2
Y 12.25 21.6 67.8
Z 12.50 26 28 1/2 68 21.8 68.5
Z 1/2 12.75 69 22.0 69.1
13 27 70 22.2 69.7
Z+1 13.25 22.4 70.4
Z+2 13.50 22.6 71.0

 

Let our specialists guide you through finding the correct ring size—convenient and accurate assistance from wherever you are.