Finding Your Ring Size

You can estimate size by measuring the circumference of your finger, using the chart below. As this is not perfectly accurate, ideally ask for a free ring sizer kit.

US Size	Cir.in inch	Cir. in MM	British	French	German	Japanese	Swiss
0000	1.23	31.1	-	-	-	-	-
00	1.33	33.7	-	-	-	-	-
0	1.43	36.3	-	-	-	-	-
1/2	1.48	37.6	A	-	-	-	-
3/4	1.51	38.3	A 1/2	-	-	-	-
1	1.54	39.0	B	-	-	1	-
1 1/4	1.56	39.6	B 1/2	-	-	-	-
1 1/2	1.58	40.2	C	-	-	-	-
1 3/4	1.61	40.8	C 1/2	-	-	-	-
2	1.64	41.5	D	41 1/2	13 1/2	2	1 1/2
2 1/4	1.66	42.1	D 1/2	-	-	-	-
2 1/2	1.68	42.7	E	42 3/4	13 3/4	3	2 3/4
2 3/4	1.71	43.4	E 1/2	-	-	-	-
3	1.73	44.0	F	44	14	4	4
3 1/8	1.75	44.3	F 1/2	-	-	-	-
3 1/4	1.76	44.6	-	-	-	-	-
3 3/8	1.77	44.9	G	45 1/4	-	5	5 1/4
3 1/2	1.78	45.2	-	-	14 1/2	-	-
3 5/8	1.79	45.5	G 1/2	-	-	6	-
3 3/4	1.81	45.9	H	46 1/2	-	-	6 1/2
4	1.83	46.5	H 1/2	-	15	7	-
4 1/4	1.86	47.1	I	47 3/4	-	-	7 3/4
4 1/2	1.88	47.8	I 1/2	-	15 1/4	8	-
4 5/8	1.90	48.1	J	49	15 1/2	-	9
4 3/4	1.91	48.4	-	-	-	-	-
5	1.93	49.0	J 1/2	-	15 3/4	9	-
5 1/8	1.94	49.3	K	50	-	-	10
5 1/4	1.95	49.6	-	-	-	-	-
5 3/8	1.97	50.0	K 1/2	-	-	10	-
5 1/2	1.98	50.3	L	51 3/4	16	-	11 3/4
5 3/4	2.01	50.9	-	-	-	-	-
5 7/8	2.02	51.2	L 1/2	-	-	-	-
6	2.03	51.5	M	52 3/4	16 1/2	12	12 3/4
6 1/4	2.06	52.2	M 1/2	-	-	-	-
6 1/2	2.08	52.8	N	54	17	13	14
6 3/4	2.10	53.4	N 1/2	-	-	-	-
7	2.13	54.0	O	55 1/4	17 1/4	14	15 1/4
7 1/4	2.16	54.7	O 1/2	-	-	-	-
7 1/2	2.18	55.3	P	56 1/2	17 3/4	15	16 1/2
7 3/4	2.20	55.9	P 1/2	-	-	-	-
8	2.23	56.6	Q	57 3/4	18	16	17 3/4
8 1/4	2.25	57.2	Q 1/2	-	-	-	-
8 1/2	2.28	57.8	-	-	18 1/2	17	-
8 5/8	2.29	58.1	R	59	-	-	19
8 3/4	2.30	58.4	-	-	-	-	-
8 7/8	2.31	58.7	R 1/2	-	-	-	-
9	2.33	59.1	-	-	19	18	-
9 1/8	2.34	59.4	S	60 1/4	-	-	20 1/4
9 1/4	2.35	59.7	-	-	-	-	-
9 3/8	2.36	60.0	S 1/2	-	-	-	-
9 1/2	2.38	60.3	-	-	19 1/2	19	-
9 5/8	2.39	60.6	T	61 1/2	-	-	21 1/2
9 3/4	2.40	60.9	-	-	-	-	-
10	2.43	61.6	T 1/2	-	20	20	-
10 1/4	2.45	62.2	U	62 3/4	-	21	22 3/4
10 1/2	2.47	62.8	U 1/2	-	20 1/4	22	-
10 5/8	2.49	63.1	V	63	-	-	23 3/4
10 3/4	2.50	63.5	-	-	-	-	-
11	2.53	64.1	V 1/2	-	20 3/4	23	-
11 1/8	2.54	64.4	W	65	-	-	25
11 1/4	2.55	64.7	-	-	-	-	-
11 3/8	2.56	65.0	W 1/2	-	-	-	-
11 1/2	2.57	65.3	-	-	21	24	-
11 5/8	2.58	65.6	X	66 1/4	-	-	26 1/4
11 3/4	2.60	66.0	-	-	-	-	-
11 7/8	2.61	66.3	X 1/2	-	-	-	-
12	2.62	66.6	Y	67 1/2	21 1/4	25	27 1/2
12 1/4	2.65	67.2	Y 1/2	-	-	-	-
12 1/2	2.68	67.9	Z	68 3/4	21 3/4	26	28 3/4
12 3/4	2.70	68.5	Z 1/2	-	-	-	-
13	2.72	69.1	-	-	22	27	-
13 1/4	2.78	70.7	-	-	-	-	-
13 1/2	2.81	71.3	-	-	-	-	-
13 3/4	2.83	72.0	-	-	-	-	-
14	2.85	72.4	-	-	-	-	-
14 1/4	2.87	72.9	-	-	-	-	-
14 1/2	2.90	73.7	-	-	-	-	-
14 3/4	2.92	74.2	-	-	-	-	-
15	2.95	74.9	-	-	-	-	-
15 1/4	2.97	75.4	-	-	-	-	-
15 1/2	3.00	76.2	-	-	-	-	-
15 3/4	3.02	76.7	-	-	-	-	-
16	3.05	77.5	-	-	-	-	-
16 1/2	3.09	78.6	-	-	-	-	-
17	3.14	79.9	-	-	-	-	-
17 1/2	3.19	81.2	-	-	-	-	-
18	3.24	82.5	-	-	-	-	-
18 1/2	3.29	83.7	-	-	-	-	-
19	3.34	85	-	-	-	-	-
19 1/2	3.39	86.3	-	-	-	-	-
20	3.44	87.6	-	-	-	-	-

* Your ring size is out of range for our chart.

Request a Free Ring Sizer

We are happy to help you figure out the right ring size, or send you a free ring sizing kit anywhere in the US or Canada.

You need to know the size of the ring early in the design process. We have several ways to help you determine the size of the ring you want.

If you have a ring that fits, you can download this chart. You will need to print it out and place it on a flat surface.

It is very important that you measure your finger several times on different days, and at different times of day... and note, very few people ask us for a size that is too small.

Helpful Hints

Wider rings will feel much tighter than narrow rings, and top heavy solitaires need to be fairly tight to avoid excessive spinning.
For surprise designs, be sure you are measuring a similar width ring that fits on the same finger.
Make sure the finger is at normal temperature, fingers shrink when cold
Measure more than once as finger size can also vary with diet, exercise, etc. from 1/4 to 1/2 size
If your knuckle is larger, ask your designer about a Euro shank. (There are two versions; softly squared to fit over the knuckle, and round with weighted lower corners.)
For a very large knuckle, an adjustable fit shank can be added to many designs as well as to many existing rings.