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Information
The finger size of all antique, period and modern rings available at our antique and bespoke jewellery shop in Central London are denoted alphabetically to the British standard. Should you require to compare ring sizes to American standards, please refer to the chart below.
Most rings can be resized without any sign of alteration. If you do not know your finger size please request for a finger gauge to be posted to you without charge by clicking here .
UK size | US size | Inside diameter (mm) | Inside circumference (mm) |
---|---|---|---|
A | ½ | 12.04 | 37.8 |
B | 1 | 12.45 | 39.1 |
C | 1½ | 12.85 | 40.4 |
D | 2 | 13.26 | 41.7 |
E | 2½ | 13.67 | 42.9 |
F | 3 | 14.07 | 44.2 |
G | 3½ | 14.48 | 45.5 |
H | 4 | 14.88 | 46.8 |
I | 4½ | 15.29 | 48 |
J | 4¾ | 15.49 | 48.7 |
K | 5¼ | 15.9 | 50 |
L | 5¾ | 16.31 | 51.2 |
M | 6¼ | 16.71 | 52.5 |
N | 6¾ | 17.12 | 53.8 |
O | 7¼ | 17.53 | 55.1 |
P | 7¾ | 17.93 | 56.3 |
Q | 8¼ | 18.34 | 57.6 |
R | 8¾ | 18.75 | 58.9 |
S | 9¼ | 19.15 | 60.2 |
T | 9¾ | 19.56 | 61.4 |
U | 10¼ | 19.96 | 62.7 |
V | 10¾ | 20.37 | 64 |
W | 11¼ | 20.78 | 65.3 |
X | 11¾ | 21.18 | 66.6 |
Y | 12¾ | 21.59 | 67.8 |
Z | 12½ | 21.79 | 68.5 |