ISO 58 in UK Ring Size

ISO 58 ≈ UK Q

Ring Size

Inner circumference:57.7-58.9mm

Ring Sizes Around ISO 58

US	UK	ISO / EU	JP / KR	Diameter (mm)	Circumference (mm)
7	N	54	14	17.3	54.4
7.5	O	56	15	17.7	55.7
8	P	57	16	18.1	57
8.5	Q	58	18	18.6	58.3
9	R	60	19	18.9	59.5
9.5	S	61	20	19.4	60.8
10	T	62	21	19.8	62.1

Nearby sizes:

Does ISO 58 round up or down in UK?

Clear the knuckle and size for the end of the day; a mid-scale ring worn on a swelling finger is the hardest to remove when it runs tight.