Size Guide

If you have any questions about product sizing, please feel free to contact us.

Accessories

Wrist circumference: This is the measurement around your wrist at the bone that protrudes.

This table shows ring sizes, inner diameters, inner circumferences (finger circumference), and international standards.

Ring Size (Japan)	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Ring Inner Diameter (mm)	13.00	13.33	13.66	14.00	14.33	14.66	15.00	15.33	15.66	16.00	16.33	16.66	17.00	17.33	17.66	18.00	18.33	18.66	19.00	19.33	19.66	20.00	20.33	20.66	21.00	21.33	21.66	22.00	22.33	22.66
Circumference (Finger Circumference, mm)	40.84	41.89	42.94	43.98	45.03	46.08	47.12	48.12	49.22	50.27	51.31	52.36	53.41	54.45	55.50	56.55	57.60	58.64	59.69	60.74	61.78	62.83	63.88	64.93	65.97	67.02	68.07	69.11	70.16	71.21
International Standard	41	42	43	44	45	46	47	48	49	50	51	52	53	54	55	56	57	58	59	60	61	62	63	64	65	66	67	68	69	70