Ring Size Chart

How to measure ring with an existing ring.

A helpful method to measure your ring size is by measuring an existing ring:

1.  Pick a ring that already fits your finger well. 
2. Measure the interior diameter of the ring in millimeters (mm).
3. Use the measurement chart below to match the size of your ring to the closest size in mm. 
4. If the ring falls between two sizes, order the larger size.

 

 

How to measure ring size with string, paper & ruler.

Another helpful method to measure your ring size is by using string, paper and ruler.

Measure Your Ring Size With These Steps:

1. Wrap string or paper around the base of your finger.
2. Mark the point where the ends meet with a pen.
3. Measure the string or paper with a ruler (mm).
4. Pick the closest measurement on the ring size chart to find your ring size.

 

International Ring Size Conversion Table

Circumference (mm)	Inside Diameter (mm)	United States & Canada	UK & Australia	Europe
44.2	14.1	3	F 1/2	44
44.8	14.3		G	45
45.5	14.5	3.5	G 1/2	45
46.1	14.7		H	46
46.8	14.9	4	H 1/2	47
47.4	15.1		I
48.0	15.3	4.5	I 1/2	48
48.7	15.5		J
49.3	15.7	5	J 1/2	49
50.0	15.9		K	50
50.6	16.1	5.5	K 1/2
51.2	16.3		L	51
51.9	16.5	6	L 1/2	52
52.5	16.7		M	53
53.1	16.9	6.5	M 1/2
53.8	17.1		N
54.3	17.3	7	N 1/2	54
55.1	17.5		O	55
55.7	17.7	7.5	O 1/2
56.3	17.9		P	56
57.0	18.1	8	P 1/2	57
57.6	18.3		Q
58.3	18.5	8.5	Q 1/2	58
58.9	18.8		R	59
59.5	19.0	9	R 1/2
60.2	19.2		S	60
60.8	19.4	9.5	S 1/2	61
61.4	19.6		T
62.1	19.8	10	T 1/2	62
62.7	20.0		U
63.4	20.2	10.5	U 1/2	63
64.0	20.4		V	64
64.6	20.6	11	V 1/2
65.3	20.8		W	65
65.9	21.0	11.5	W 1/2	66
66.6	21.2		X
67.2	21.4	12	X 1/2	67
67.8	21.6		Y
68.5	21.8	12.5	Z	68