Ring Size Guide

International ring size conversion

Ring sizes vary between countries. Use the table below to compare the principal international sizing systems.

Finger Circumference mm	Europe EU sizing	US / Canada Numerical sizing	UK / Australia / NZ Letter sizing	Japan Numerical sizing
44 mm	44	3	F ½	4
45 mm	45	3 ¼	G	5
46 mm	46	3 ¾	H	6
47 mm	47	4	H ½	7
48 mm	48	4 ½	I ½	8
49 mm	49	4 ¾	J ½	9
50 mm	50	5 ¼	K	10
51 mm	51	5 ¾	L	11
52 mm	52	6	L ½	12
53 mm	53	6 ¼	M ½	13
54 mm	54	6 ¾	N ½	14
55 mm	55	7 ¼	O	15
56 mm	56	7 ½	P	16
57 mm	57	8	P ½	17
58 mm	58	8 ¼	Q ½	18
59 mm	59	8 ¾	R	19
60 mm	60	9	S	20
61 mm	61	9 ½	S ½	21
62 mm	62	10	T ½	22
63 mm	63	10 ¼	U ½	23
64 mm	64	10 ¾	V	24
65 mm	65	11	W	25
66 mm	66	11 ½	W ½	26
67 mm	67	11 ¾	X ½	27
68 mm	68	12 ¼	Z	28
69 mm	69	12 ½	Z ½	29
70 mm	70	13	—	30
71 mm	71	13 ¼	—	31

International sizing systems are not identical, and conversions should be treated as a guide. Canada generally follows US numerical sizing, while Australia and New Zealand commonly use the UK letter system. If you are uncertain about your size, please contact us before ordering.

Measuring your ring size

Finger size can vary with temperature and throughout the day. For the most reliable result, measure more than once and avoid measuring when your hands are unusually cold or wet. If you are between two sizes, we recommend discussing the fit with us before placing your order.

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