Ring size chart

The numbers are approximations.

Inside Diameter 直径 mm	Inner Circumference 内周 mm	ISO 国際 規格	JP KR	US CA MX	UK AU NZ	CN
14.4	45.0	45	5	3.4	Ｇ
14.5	46.0					7
14.7	46.1	46	6	3.8	G ~ H
15.0	47.1	47	7	4 ~ 4.5	H ~ I
15.1	47.5					8
15.4	48.2	48	8	4.5 ~ 5	I 1/2	9
15.7	49.2	49	9	5	J
16.0	50.3	50	10	5 ~ 5.5	K	10
16.4	51.3	51	11	5.5	L
	52.0					11
16.7	52.4	52	12	6	L ~ M	12
17.0	53.4	53	13	6.5 ~ 7	M ~ N	13
17.4	54.5	54	14	7 ~ 7.5	N ~ O
17.7	55.5	55	15	7.5 ~ 8	O~P	14
18.0	56.5	56	16	8	P	15
Inside Diameter 直径 mm	Inner Circumference 内周 mm	ISO 国際 規格	JP KR	US CA MX	UK AU NZ	CN