International Ring Size Conversion Chart

It is important to state that when purchasing a wedding ring you should be 100% sure that the ring is the right one for you. The best way of doing this is to get your finger measured by your local jeweler. Below is a ring size conversion chart to help our international customers convert their ring sizes.

International Ring Sizing Conversion Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
000	0.390	---	---	---	---	---
00	0.422	---	---	---	---	---
0	0.454	---	---	---	---	---
½	0.462	A	---	---	---	---
¾	0.471	A-½	---	---	---	---
1	0.487	B	---	---	1	---
1 1/4	0.495	B-½	---	---	---	---
1 1/2	0.503	C	---	---	---	---
1 3/4	0.511	C-½	---	---	---	---
2	0.520	D	41 1/2	13 1/4	2	1 1/2
2 1/4	0.528	D-½	42 1/8	13 1/2	---	---
2 1/2	0.536	E	42 3/4	13 3/4	3	2 3/4
2 3/4	0.544	E-½	43 3/8	---	---	3 3/8

International Ring Sizing Conversion Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
3	0.553	F	44	14	4	4
3 1/4	0.561	F-½	44 5/8	14 1/4	---	4 5/8
3 1/2	0.569	G	45 1/4	14 1/2	5	5 1/4
3 3/4	0.577	G-½	45 7/8	14 3/4	6	5 7/8
4	0.586	H-½	46 1/2	15	7	6 1/2
4 1/4	0.594	I	47 1/8	15 1/4	---	7 1/8
4 1/2	0.602	I-½	47 3/4	15 1/2	8	7 3/4
4 3/4	0.610	J	48 3/8	---	---	8 3/8
5	0.619	J-½	49	15 3/4	9	9
5 1/4	0.627	K	49 5/8	16	---	9 5/8
5 1/2	0.635	K-½	50 1/4	16 1/4	10	10 1/4
5 3/4	0.643	L	50 7/8	---	11	10 7/8

International Ring Sizing Conversion Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
6	0.652	L-½	51 1/2	16 1/2	12	11 1/2
6 1/4	0.660	M	52 1/8	16 3/4	---	12 1/8
6 1/2	0.668	M-½	52 3/4	17	13	12 3/4
6 3/4	0.676	N	53 3/8	---	---	13 3/8
7	0.685	O	54	17 1/4	14	14
7 1/4	0.693	O-½	54 5/8	17 1/2	---	14 5/8
7 1/2	0.701	P	55 1/4	17 3/4	15	15 1/4
7 3/4	0.709	P-½	55 7/8	---	---	15 7/8
8	0.717	Q	56 1/2	18	16	16 1/2
8 1/4	0.726	Q-½	57 1/8	18 1/4	---	17 1/8
8 1/2	0.734	R	57 3/4	18 1/2	17	17 3/4
8 3/4	0.742	R-½	58 3/8	18 3/4	---	18 3/8

International Ring Sizing Conversion Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
9	0.750	S	59	19	18	19
9 1/4	0.759	S-½	59 5/8	19 1/4	---	19 5/8
9 1/2	0.767	---	60 1/4	19 1/2	19	20 1/4
9 3/4	0.775	T	60 7/8	19 3/4	---	20 7/8
10	0.783	T-½	61 1/2	20	20	21 1/2
10 1/4	0.792	U	62 1/8	20 1/4	21	22 1/8
10 1/2	0.800	U-½	62 3/4	20 1/2	22	22 3/4
10 3/4	0.808	V	63 3/8	---	---	23 3/8
11	0.816	V-½	64	20 3/4	23	24
11 1/4	0.825	W	64 5/8	---	---	24 5/8
11 1/2	0.833	W-½	65 1/4	21	24	25 1/4
11 3/4	0.841	X	65 7/8	---	---	25 7/8

International Ring Sizing Conversion Chart
US & Canada Ring Size	Diameter in Inches	Great Britain	France	Germany	Japan	Switzerland
12	0.849	Y	66 1/2	21 1/4	25	26 1/2
12 1/4	0.858	Y-½	67 1/8	21 1/2	---	27 1/8
12 1/2	0.866	Z	67 3/4	21 3/4	26	27 3/4
12 3/4	0.874	Z-½	68 3/8	---	---	28 3/8
13	0.882	---	69	22	27	29

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