MYSTERYJOY RING SIZE GUIDE

EU	USA & UK	JAPAN
44	3	4
45	3.25	5
46	3.75	6
47	4	7
48	4.5	8
49	4.75	9
50	5.25	10
51	5.75	11
52	6	12
53	6.25	13
54	6.75	14
55	7.25	15
56	7.5	16
57	8	17
58	8.25	18
59	8.75	19
60	9	20

 

For perfect accuracy, a true-to-size ring guide can be found and printed here.