Ring Size Guide

Your ring size is a number that corresponds to the diameter of your finger measured in millimeters. Please use our complimentary ring sizer to find your ring size, or learn more on how to measure your ring size.

Engagement rings and wedding bands are commonly worn on the left ring finger. Measure the exact finger where you’ll be wearing your ring, as fingers on either hand can be slightly different.

Ring Sizes

USA & Canada	Diameter (mm)	Europe	UK & Australia
3	14.1	44	F
3.25	14.3	45	F½
3.5	14.5	45.5	G
3.75	14.7	46	G½
4	14.9	47	H
4.25	15.1	47.5	H½
4.5	15.3	48	I
4.75	15.5	48.5	J
5	15.7	49	J½
5.25	15.9	50	K
5.5	16.1	50.5	K½
5.75	16.3	51	L
6	16.5	52	L½
6.25	16.7	52.5	M
6.5	16.9	53	M½
6.75	17.1	54	N
7	17.3	54.5	N½
7.25	17.6	55	O
7.5	17.8	56	O½
7.75	18	56.5	P
8	18.2	57	P½
8.25	18.4	58	Q
8.5	18.6	58.5	Q½
8.75	18.8	59	R
9	19	60	R½
9.25	19.2	60.5	S
9.5	19.4	61	S½
9.75	19.6	61.5	T
10	19.8	62	T½
10.25	20	63	U
10.5	20.2	63.5	U½
10.75	20.4	64	V
11	20.6	65	V½
11.25	20.9	65.5	W
11.5	21.1	66	W½
11.75	21.3	67	X
12	21.5	67.5	X½
12.25	21.7	68	Y
12.5	21.9	69	Z
12.75	22.1	69.5	Z½
13	22.3	70
13.25	22.5	71	Z1
13.5	22.7	71.5
13.75	22.9	72	Z2
14	23.1	72.5	Z3