Ring Size Guide

Convert table of ring size

There are several different ring size systems used worldwide. Athena Jewellery is using the Hong Kong measurement system to define the size of ring. For your convenience the following are the ring size equivalents around the world compare to Hong Kong measurement system.

Ring Size Chart

Inter- Diameter (mm)	Hong Kong Size	American Size	United Kingdom Size	Japan Size	Switzerland Size
14.1	6	3	F	4	4
14.3	7	3.25	F 1/2	5	5.25
14.7	8	3.75	G	6	6.5
14.9	9	4	H	7	7
15.3	10	4.5	I	8	8.5
15.7	11	5	J 1/2	9	9.5
16.1	12	5.5	K 1/2	10	10.5
16.5	13	6	L 1/2	11	12.75
16.7	14	6.25	M	12	13.5
17.1	15	6.75	N	13.5	14.5
17.3	16	7	N 1/2	14	15.25
17.7	17	7.5	O 1/2	15	16.5
18.2	18	8	P 1/2	16.25	18.25
18.5	19	8.5	Q 1/2	17	18.75
18.8	20	9.75	R	17.5	19
19.1	21	9.25	S	18	20
19.4	22	9.5	S 1/2	19	20.75
19.8	23	10	T 1/2	20	21.75
20.2	24	10.5	U 1/2	22	22.75
20.6	25	11	V 1/2	23	24.75
21.0	26	11.5	W 1/2	24	26.25
21.2	27	12	X	24.5	26.75
21.6	28	12.25	Y	25.5	28
22.0	29	12.5	Z 1/2	26.5	29