US, British & European Finger Ring Sizes |
||
| This comparative chart attempts to reconcile the differing sizing systems in use. Rarely do the measurements coincide but using this list it is possible to approximate one sizing system to another. Sizes within 0.01mm have been equated. | ||
| US |
British |
European |
| 3 |
F |
44 |
| F½ |
45 |
|
| 3½ |
G |
|
| 4 |
H |
46 |
| 4½ |
H½ |
47 |
| I |
48 |
|
| 5 |
J |
49 |
| J½ |
50 |
|
| 5½ |
K |
|
| K½ |
51 |
|
| 6 |
L |
|
| 52 |
||
| L½ |
||
| 6½ |
M |
|
| 53 |
||
| M½ |
||
| 7 |
N |
54 |
| N½ |
||
| 55 |
||
| 7½ |
O |
|
| O½ |
||
| 56 |
||
| 8 |
P |
|
| 57 |
||
| P½ |
||
| Q |
||
| 8½ |
58 |
|
| Q½ |
||
| R |
59 |
|
| 9 |
||
| R½ |
||
| 60 |
||
| S |
||
| 9½ |
||
| S½ |
||
| 61 |
||
| T |
||
| 10 |
T½ |
62 |
| U |
||
| 63 |
||
| 10½ |
U½ |
|
| V |
64 |
|
| V½ |
||
| 11 |
||
| W |
65 |
|
| W½ |
||
| 11½ |
66 |
|
| X |
||
| X½ |
||
| 67 |
||
| 12 |
||
| Y |
||
| 68 |
||
| Y½ |
||
| 12½ |
||
| Z |
69 |
|
| Z½ |
||
| 13 |
||
| 70 |
||
 |
|
|
