Size guide

The sizes of our rings follow the EU standard. Check which size is right for you in the following table.

Circumference ring in mm	Diameter ring in mm	EU	US	UK	EN
44	14.01	44	3	F ½	4
45	14.33	45	3 ¼	G	5
46	14.65	46	3 ¾	H	6
47	14.97	47	4	H ½	7
48	15.29	48	4 ½	I ½	8
49	15.61	49	4 ¾	J ½	9
50	15.92	50	5 ¼	K	10
51	16.24	51	5 ¾	L	11
52	16.56	52	6	L ½	12
53	16.88	53	6 ¼	M ½	13
54	17.2	54	6 ¾	N ½	14
55	17.52	55	7 ¼	O	15
56	17.83	56	7 ½	P	16
57	18.15	57	8	P ½	17
58	18.47	58	8 ¼	Q ½	18
59	18.79	59	8 ¾	R	19
60	19.11	60	9	S	20
61	19.43	61	9 ½	S ½	21
62	19.74	62	10	T ½	22
63	20.06	63	10 ¼	U ½	23
64	20.38	64	10 ¾	V	24
65	20.7	65	11	W	25
66	21.02	66	11 ½	W ½	26
67	21.34	67	11 ¾	X ½	27
68	21.66	68	12 ¼	Z	28
69	21.97	69	12 ½	Z ½	29