International Ring Sizing Chart
Diameter (mm)
Circumference (mm)
US & CA
UK & AU
Europe
14.1
44.2
3
F 1/2
44
14.5
45.5
3.5
G 1/2
14.9
46.8
4
H 1/2
47
15.3
48
4.5
I 1/2
48
15.7
49.3
5
J 1/2
49
16.1
50.6
5.5
K 1/2
16.5
51.9
6
L 1/2
52
16.9
53.1
6.5
M 1/2
53
17.3
54.4
7
N 1/2
54
17.7
55.7
7.5
O 1/2
18.1
57
8
P 1/2
57
18.5
58.3
8.5
Q 1/2
58
19
59.5
9
R 1/2
19.4
60.8
9.5
S 1/2
61
19.8
62.1
10
T 1/2
62
20.2
63.4
10.5
U 1/2
63
20.6
64.6
11
V 1/2
21
65.9
11.5
W 1/2
66
21.4
67.2
12
X 1/2
67
21.8
68.5
12.5
Z
68
 

How to Determine Your Ring Size?

  1. Find a piece of string or strip of paper no wider than 1.4 cm (1/2 inch).
  2. Wrap it around the base of the appropriate finger.
  3. Use a pen to mark the point on the string/paper where it overlaps, forming a complete circle.
  4. With a ruler, measure the length from the starting end of the string/paper to the pen mark.
  5. Use the chart above to determine your ring size.


TIPS

  • Measure your finger in warm temperatures at the end of the day.
  • If your knuckle is a lot larger than the base of your finger,measure both the base of your finger and your knuckle and select a size between the two.
  • When considering a wide band, move up a size from your measurement, for comfort’s sake.