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| Inside Diameter mm |
Finger Circumference mm |
Size |
UK/AUS Size |
| 16.51 |
51.87 |
5.25 |
J 1/2 |
| 16.71 |
52.50 |
5.5 |
K 1/2 |
| 16.92 |
53.14 |
5.75 |
L 1/2 |
| 17.12 |
53.78 |
6 |
M |
| 17.53 |
55.10 |
6.5 |
N |
| 17.93 |
56.30 |
7 |
O |
| 18.34 |
57.61 |
7.5 |
P |
| 18.54 |
58.25 |
7.75 |
P 1/2 |
| 18.75 |
58.90 |
8 |
Q |
| 19.15 |
60.16 |
8.5 |
R |
| 19.56 |
61.45 |
9 |
S |
| 19.96 |
62.71 |
9.5 |
T |
| 20.37 |
64.00 |
10 |
U |
| 20.78 |
65.27 |
10.5 |
V |
| 21.18 |
66.53 |
11 |
W |
| 21.59 |
67.82 |
11.5 |
X |
| 21.79 |
68.46 |
11.75 |
Y |
| 22.00 |
69.08 |
12 |
Z |
| 22.40 |
70.37 |
12.5 |
Z 1/2 |
| 22.81 |
71.65 |
13 |
Z+1 |
| 23.22 |
72.94 |
13.5 |
Z+1 1/2 |
| Inside Diameter mm |
Finger Circumference mm |
Size |
UK/AUS Size |
| 15.9 |
50 |
5.25 |
K 1/4 |
| 16.5 |
51.9 |
6 |
M |
| 16.9 |
53.2 |
6.5 |
N |
| 17.4 |
54.5 |
7 |
O |
| 17.8 |
55.8 |
7.5 |
P |
| 18.2 |
57.2 |
8 |
Q |
| 18.5 |
58.2 |
8.5 |
Q 3/4 |
| 18.9 |
59.3 |
9 |
R 3/4 |
| 19.4 |
61 |
9.5 |
S 3/4 |
| 19.8 |
62.3 |
10 |
T 1/2 |
| 20.2 |
63.5 |
10.5 |
U 1/2 |
| 20.7 |
65 |
11 |
V 1/2 |
| 21.1 |
66.2 |
11.5 |
W 1/4 |
| 21.5 |
67.5 |
12 |
X 1/4 |
| 21.9 |
68.8 |
12.5 |
Y 1/4 |
| 22.3 |
70.1 |
13 |
Z |
| 22.7 |
71.4 |
13.5 |
Z+1 |
Tips for accurate sizing
- Measure at the end of the day when fingers are warmest
- Measure the specific finger you'll wear the ring on
- Note that wider bands may need a half size up
- If between sizes, go up for comfort
- Choosing a selection results in a full page refresh.
- Opens in a new window.