Ring sizes
UK size |
US size |
EU size |
Diameter |
F | 3 | 44 | 14.1mm |
G | 3½ | 45 | 14.5mm |
H | 4 | 46 | 14.7mm |
I | 4½ | 48 | 15.2mm |
J | 5 | 49 | 15.6mm |
K | 5½ | 50 | 16.0mm |
L | 6 | 51 | 16.4mm |
M | 6½ | 53 | 16.8mm |
N | 7 | 54 | 17.2mm |
O | 7½ | 55 | 17.6mm |
P | 8 | 56 | 18.0mm |