UK Ring Size Chart

UK Ring Size Circumference (mm) US Ring Size Equivalent
I 48.0 ~ 4.5
J 48.7 ~ 4 3/4
K 50.0 ~ 5 1/4
L 51.2 ~ 5 3/4
M 52.5 ~ 6 1/4
N 53.8 ~ 6 3/4
O 55.1 ~ 7
P 56.3 ~ 7.5
Q 57.6 ~ 8
R 58.9 ~ 8.5
 

Using a tape measure and the above chart of UK measurements, find out your ring size (in mm) from home. Measure the ring size circumference around your ring finger on your left hand.

You can also download our printable ring sizer to make finding your perfect ring size even easier! Please note that this is only a guide and will not take into account the style of ring.