International Ring Size Chart

Compare ring sizes across the globe. Whether you're shopping from the US, UK, Europe, or Asia, our international chart helps you find the perfect fit.

💡Quick Answer

Compare ring sizes across all countries with our international chart. Includes US, UK, EU, JP, AU, CH, DE sizing systems with precise MM measurements for global jewelry shopping.

🇺🇸 US/CA	🇬🇧 UK/AU	🇪🇺 EU	🇯🇵 JP	🇨🇭 CH	🇩🇪 DE	Dia (mm)	Circ (mm)
3	F	44	4	4	14	14.1	44.2
3.5	G	45	5	5.25	14.5	14.5	45.5
4	H	46.5	7	6.5	15	14.9	46.8
4.5	I	48	8	7.75	15.25	15.3	48
5	J 1/2	49	9	9	15.75	15.7	49.3
5.5	L	50.5	10	10.25	16	16.1	50.6
6	M	52	12	11.5	16.5	16.5	51.9
6.5	N	53	13	12.75	17	16.9	53.1
7	O	54.5	14	14	17.25	17.3	54.4
7.5	P	56	15	15.25	17.75	17.7	55.7
8	Q	57	16	16.5	18	18.1	57
8.5	R	58.5	17	17.75	18.5	18.5	58.3
9	S	59.5	18	19	19	19	59.5
9.5	T	61	19	20.25	19.5	19.4	60.8
10	U	62	20	21.5	20	19.8	62.1
10.5	V	63.5	22	22.75	20.25	20.2	63.4
11	W	65	23	24	20.75	20.6	64.6
11.5	X	66	24	25.25	21	21	65.9
12	Y	67.5	25	26.5	21.25	21.4	67.2
12.5	Z	69	26	27.75	21.75	21.8	68.5
13	Z+1	70	27	29	22.25	22.2	69.7