Ring Sizes
This is a chart I have put together and it has been tried and tested by my clients. However, there is nothing more fool proof than checking with your local jeweller, to be sure you are selecting the right size.
If you have any concerns and would prefer to talk through your sizing, please get in touch.
|
UK size |
US size |
Inside diameter |
|
H |
3.75 |
15mm |
|
H ½ |
4 |
|
|
I |
4.25 |
15.5mm |
|
I ½ |
4.5 |
|
|
J |
4.75 |
16mm |
|
J ½ |
5 |
|
|
K |
5.25 |
16.5mm |
|
K ½ |
5.5 |
|
|
L |
5.75 |
16.75mm |
|
L ½ |
6 |
|
|
M |
6.25 |
17.2mm |
|
M ½ |
6.5 |
|
|
N |
6.75 |
17.5mm |
|
N ½ |
7 |
|
|
O |
7.25 |
17.8mm |
|
O ½ |
7.5 |
|
|
P |
7.75 |
18.1mm |
|
P ½ |
8 |
|
|
Q |
8.25 |
18.5mm |
|
Q ½ |
8.5 |
|
|
R |
8.5 |
19mm |
|
R ½ |
8.75 |
|
|
S |
9 |
19.3mm |
|
S ½ |
9.25 |
|
|
T |
9.5 |
19.8mm |
|
T ½ |
9.75 |
|
|
U |
10 |
20mm |
|
U ½ |
10.25 |
|
|
V |
10.5 |
20.5mm |
|
V ½ |
10.75 |
|
|
W |
11 |
21mm |
|
W ½ |
11.25 |
|
|
X |
11.5 |
21.2mm |
|
X ½ |
11.75 |
|
|
Y |
12 |
21.8mm |
|
Y ½ |
12.25 |
|
|
Z |
12.5 |
22.1mm |
|
Z ½ |
12.75 |
|
|
Z + 1 |
13 |
|
|
Z + 2 |
13.5 |
|
|
Z + 3 |
14 |
|
|
Z + 4 |
14.5 |
|
|
Z + 5 |
15 |
|