Ring size chart
International sizing isn't standardized, so sizes can differ across countries or regions. If you're not sure about an item's size, exact measurements can help.
The sizes below may not apply to all brands, but you can use them for reference and comparison.
|
Inner circumference (mm) |
Inner diameter (mm) |
UK |
US |
ES/IT |
|
44.3 |
14.1 |
F½ |
3 |
4 |
|
45.6 |
14.5 |
G½ |
3.5 |
5 |
|
46.8 |
14.9 |
H |
4 |
6.5 |
|
48.1 |
15.3 |
I |
4.5 |
8 |
|
49.3 |
15.7 |
J½ |
5 |
9.5 |
|
50.6 |
16.1 |
K½ |
5.5 |
10.5 |
|
51.8 |
16.5 |
L½ |
6 |
12 |
|
53.1 |
16.9 |
M½ |
6.5 |
13.5 |
|
54.3 |
17.3 |
N½ |
7 |
14.5 |
|
55.6 |
17.7 |
O½ |
7.5 |
16 |
|
56.9 |
18.1 |
P½ |
8 |
18.5 |
|
58.1 |
18.5 |
Q½ |
8.5 |
19.5 |
|
59.7 |
19 |
R½ |
9 |
21 |
|
60.9 |
19.4 |
S½ |
9.5 |
22.5 |
|
62.2 |
19.8 |
T½ |
10 |
23.5 |
|
63.5 |
20.2 |
U½ |
10.5 |
25 |
|
64.7 |
20.6 |
V½ |
11 |
26 |
|
66.0 |
21 |
W½ |
11.5 |
27 |
|
67.2 |
21.4 |
X½ |
12 |
29 |
|
68.5 |
21.8 |
Z |
12.5 |
30 |
|
69.7 |
22.2 |
Z+1 |
13 |
31 |
|
71.0 |
22.6 |
Z+2 |
13.5 |
32 |
How to measure your ring size
- If you don’t have a ring sizer, use a flexible measuring tape for sewing or a thin strip of paper
- Using paper or tape, make a ring that comfortably fits your desired finger
- Measure the length of the ring to find your finger’s circumference
If you have a ring that perfectly fits your desired finger, measure the inner diameter of the ring and see the table above for reference.