Ring Size Chart

Ring Size Guide

Hartmanns rings are measured in UK sizes, denoted by a letter. The chart below shows all international sizes and measurements. Our rings can be crafted in any size for the perfect fit.

Slide left and right on the size guide below to see more.

Inside Diameter		Inside Circumference		Sizes
(in)	(mm)	(in)	(mm)	United Kingdom Ireland Australia New Zealand	United States Canada Mexico	Italy Spain Netherlands Switzerland	France	Germany
0.586	14.88	1.84	46.8	H	4	6.75	46 ½	15
0.602	15.29	1.89	48.0	I	4 ½	8	47 ¾	15 ¼
0.618	15.7	1.94	49.3	J ½	5	9.25	49	15 ½
0.634	16.1	1.99	50.6	K ½	1 ½	10.5	50 ¼	16
0.65	16.51	2.04	51.9	L ½	6	11.75	52 ¼	16 ½
0.666	16.92	2.09	53.1	M ½	6 ½	13.25	54	17
0.682	17.32	2.14	54.4	N ½	7	14.5	55 ¼	17 ¼
0.698	17.73	2.19	55.7	O ½	7 ½	15.75	56 ½	17 ¾
0.714	18.4	2.24	57.0	P ½	8	17	57 ¾	18
0.73	18.54	2.29	58.3	Q ½	8 ½	18.25	58 ½	18 ½
0.746	18.95	2.34	59.5	R ½	9	19.5	59	19
0.762	19.35	2.39	60.8	S ½	9 ½	20.75	60 ¼	19 ½
0.778	19.76	2.44	62.1	T ½	10	22	61 ½	20
0.794	20.17	2.49	63.4	U ½	10 ½	23.25	62 ¾	20 ¼
0.81	20.57	2.54	64.6	V ½	11	24.75	64	20 ¾
0.826	20.98	2.59	65.9	W ½	11 ½	26	65 ¼	21
0.842	21.39	2.65	67.2	X ½	12	27.25	67 ½	21 ¼

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