Ring Sizing

All my rings follow a British standard sizing system. 

I have a ring sizing PDF below. Print the JPG's in A4 to find your size. Ring sizing PDF

UK Size	Inside Diameter (mm)	Inside Diameter (inches)
D	12.84	0.52
E	13.57	0.53
F	13.97	0.55
G	14.38	0.56
H	14.88	0.58
I	15.10	0.59
J (X-Small)	15.49	0.61
K	15.90	0.62
L	16.31	0.64
M (Small)	16.71	0.66
N	17.12	0.67
O	17.53	0.69
P (Medium)	17.93	0.70
Q	18.34	0.72
R (Large)	18.75	0.73
S	19.15	0.75
T	19.56	0.77
U	19.96	0.79
V	20.37	0.80
W	20.76	0.81