Choosing the right ring size
It’s important to have a ring that fits and to help you choose the right one, we’ve created the below table which shows the circumference of each ring size in mm.
UK Ring Size | US Size | EU Size | Circumference (mm) | Diameter |
H | 4 | 47 | 46.8mm | 14.7mm |
I | 4 ½ | 48 | 48mm | 15.2mm |
J | 5 | 49 | 48.7mm | 15.6mm |
K | 5 ½ | 50 | 50mm | 16.0mm |
L | 6 | 51 | 51.2mm | 16.4mm |
M | 6 ½ | 52 | 52.5mm | 16.8mm |
N | 7 | 53 | 53.8mm | 17.2mm |
O | 7 ½ | 54 | 55.1mm | 17.6mm |
P | 8 | 55 | 56.3mm | 18.0mm |
Q | 8 ½ | 56 | 57.6mm | 18.4mm |
R | 9 | 57 | 58.9mm | 18.8mm |
S | 9 ½ | 58 | 60.2mm | 19.2mm |
T | 10 | 59 | 61.4mm | 19.6mm |
U | 10 ½ | 60 | 62.7mm | 20.0mm |