Ring Sizing Information
|
UK & Australian |
Inside Diametre mm |
Inside Circumference mm |
US & Canadian |
French & Russian |
German |
Japanese |
Swiss |
|
G |
14.36 |
45.11 |
3 3/8 |
45 ¼ |
|
5 |
5 ¼ |
|
G ½ |
14.56 |
45.74 |
3 5/8 |
|
|
6 |
|
|
H |
14.65 |
46.02 |
3 ¾ |
46 ½ |
|
|
6 ½ |
|
H ½ |
14.86 |
46.68 |
4 |
|
15 |
7 |
|
|
I |
15.04 |
47.25 |
4 ¼ |
47 ¾ |
|
|
7 ¾ |
|
I ½ |
15.27 |
47.97 |
4 ½ |
|
15 ¼ |
8 |
|
|
J |
15.40 |
48.38 |
4 5/8 |
49 |
15 ½ |
|
9 |
|
J ½ |
15.70 |
49.32 |
5 |
|
15 ¾ |
9 |
|
|
K |
15.80 |
49.64 |
5 1/8 |
50 |
|
|
10 |
|
K ½ |
16.00 |
50.27 |
5 3/8 |
|
|
10 |
|
|
L |
16.10 |
50.58 |
5 ½ |
51 ¾ |
16 |
|
11 ¾ |
|
L ½ |
16.41 |
51.55 |
5 7/8 |
|
|
|
|
|
M |
16.51 |
51.87 |
6 |
52 ¾ |
16 ½ |
12 |
12 ¾ |
|
M ½ |
16.71 |
52.50 |
6 ¼ |
|
|
|
|
|
N |
16.92 |
53.16 |
6 ½ |
54 |
17 |
13 |
14 |
|
N ½ |
17.13 |
53.82 |
6 ¾ |
|
|
|
|
|
O |
17.35 |
54.51 |
7 |
55 ¼ |
17 ¼ |
14 |
15 ¼ |
|
O ½ |
17.45 |
54.82 |
7 ¼ |
|
|
|
|
|
P |
17.75 |
55.76 |
7 ½ |
56 ½ |
17 ¾ |
15 |
16 ½ |
|
P ½ |
17.97 |
56.45 |
7 ¾ |
|
|
|
|
|
Q |
18.19 |
57.15 |
8 |
57 ¾ |
18 |
16 |
17 ¾ |
|
Q ½ |
18.35 |
57.65 |
8 ¼ |
|
|
|
|
|
R |
18.61 |
58.47 |
8 5/8 |
59 |
|
|
19 |
|
R ½ |
18.80 |
59.06 |
8 7/8 |
|
|
|
|
|
S |
19.10 |
60 |
9 1/8 |
60 ¼ |
|
|
20 ¼ |
|
S ½ |
19.31 |
60.65 |
9 3/8 |
|
|
|
|
|
T |
19.51 |
61.29 |
9 5/8 |
61 ½ |
|
|
21 ½ |
|
T ½ |
19.84 |
62.33 |
10 |
|
20 |
20 |
|
|
U |
20.02 |
62.89 |
10 ¼ |
62 ¾ |
|
21 |
22 ¾ |
|
U ½ |
20.20 |
63.46 |
10 ½ |
|
20 ¼ |
22 |
|
|
V |
20.32 |
63.84 |
10 5/8 |
63 |
|
|
23 ¾ |
|
V ½ |
20.68 |
64.97 |
11 |
|
20 ¾ |
23 |
|
|
W |
20.76 |
65.22 |
11 1/8 |
65 |
|
|
25 |
|
W ½ |
20.94 |
65.78 |
11 3/8 |
|
|
|
|
|
X |
21.18 |
66.54 |
11 5/8 |
66 ¼ |
|
|
26 ¼ |
|
X ½ |
21.30 |
66.92 |
11 7/8 |
|
|
|
|
|
Y |
21.49 |
67.51 |
12 |
67 ½ |
21 ¼ |
25 |
27 ½ |
|
Y ½ |
21.69 |
68.14 |
12 ¼ |
|
|
|
|
|
Z |
21.89 |
68.77 |
12 ½ |
68 ¾ |
21 ¾ |
26 |
28 ¾ |
|
Z ½ |
22.10 |
69.43 |
12 ¾ |
|
|
|
|