Sizing Guide | Stephen Webster

Ring Size Guide

To obtain the most accurate measurement of your finger, measure at room temperature, when your hands are not unusually cold.

Alternatively, to work out your size from an existing ring, measure the ring using our sizing guide below.

Stephen Webster	Circumference (mm)	Diameter (mm)	UK & Australia	USA & Canada	Europe	China	Singapore & Japan	Hong Kong	Switzerland
3	44.2	14.1	F½	3	44	6	4	6	4
	44.8	14.3	G		45		5		5.25
3.5	45.5	14.5	G½	3.5		7		7.5
	46.1	14.7	H		46		6		6.5
4	46.8	14.9	H½	4	47	8	7	9
	47.4	15.1	I			9			7.75
4.5	48.0	15.3	I½	4.5	48		8	10
	48.7	15.5	J						9
5	49.3	15.7	J½	5	49	10	9	11
	50.0	15.9	K		50				10
5.5	50.6	16.1	K½	5.5		11	10	12
	51.2	16.3	L		51				11.75
6	51.9	16.5	L½	6	52	12	11	13	12.75
	52.5	16.7	M			13	12
6.5	53.1	16.9	M½	6.5	53		13	14.5	14
	53.8	17.1	N			14
7	54.4	17.3	N½	7	54		14	16	15.25
	55.1	17.5	O		55	15
7.5	55.7	17.7	O½	7.5			15	17	16.5
	56.3	17.9	P		56	16
8	57.0	18.1	P½	8	57	17	16		17.75
	57.2	18.2						18
	57.6	18.3	Q
8.5	58.3	18.5	Q½	8.5	58	18	17	19
	58.9	18.8	R		59				19
9	59.5	19.0	R½	9		19	18	20.5
	60.2	19.2	S		60	20			20.25
9.5	60.8	19.4	S½	9.5	61		19	22
	61.4	19.6	T			21			21.5
10	62.1	19.8	T½	10	62		20	23
	62.7	20.0	U			22	21
10.5	63.4	20.2	U½	10.5	63		22	24	22.75
	64.0	20.4	V		64	23
11	64.6	20.6	V½	11			23	25
	65.3	20.8	W		65	24			25
11.5	65.9	21.0	W½	11.5	66	25	24	26
	66.6	21.2	X
12	67.2	21.4	X½	12	67	26	25	27.75	27.5
	67.8	21.6	Y
12.5	68.5	21.8	Z	12.5	68		26		28.75
	69.1	22.0	Z½		69
13	69.7	22.2		13	70		27	30
	70.4	22.4	Z+1
13.5	71.0	22.6	Z+2	13.5

Sizing Guide Information | Stephen Webster