Ring Size

All rings outside of eternity bands, can be resized at any time and 1 free resize is included within 60 days of receiving your ring.

Using an existing ring is one of the best ways to figure out you or your partner's ring size if you are unable to be sized by a professional or are trying to keep it a secret!

If you or your partner wears rings in general, find one that is closest to that of the intended 'ring' finger. Trace the inside of that ring on a piece of paper and measure the diameter to the most precise mm that you can. That measurement can be used to determine the size of the ring by referencing the table below or this International Ring Size chart.
If the band you are using for reference is much thicker than the one you are purchasing you might want to reduce the size by 0.5 or half a size since thick/wide bands fit larger than a super thin band does.

Inside Diameter		Inside Circumference		Sizes
MM	Inches	MM	Inches	British & Australian	US & Canada
9.91	0.390	31.13	1.22	-	0
10.72	0.442	33.68	1.39	-	0
11.53	0.454	36.22	1.43	-	0
11.95	0.474	37.54	1.49	A	1/2
12.18	0.482	38.26	1.51	A 1/2	3/4
12.37	0.487	38.86	1.53	B	1
12.60	0.496	39.58	1.56	B 1/2	1 1/4
12.78	0.503	40.15	1.58	C	1 1/2
13.00	0.512	40.84	1.61	C 1/2	1 3/4
13.21	0.520	41.50	1.63	D	2
13.41	0.528	42.13	1.66	D 1/2	2 1/4
13.61	0.536	42.76	1.68	E	2 1/2
13.83	0.544	43.45	1.71	E 1/2	2 3/4
14.05	0.553	44.14	1.74	F	3
14.15	0.557	44.45	1.75	F 1/2	3 1/8
14.25	0.561	44.77	1.76	F 3/4	3 1/4
14.36	0.565	45.11	1.77	G	3 3/8
14.45	0.569	45.40	1.79	G 1/4	3 1/2
14.56	0.573	45.74	1.80	G 1/2	3 5/8
14.65	0.577	46.02	1.81	H	3 3/4
14.86	0.585	46.68	1.84	H 1/2	4
15.04	0.592	47.25	1.86	I	4 1/4
15.27	0.601	47.97	1.89	I 1/2	4 1/2
15.40	0.606	48.38	1.90	J	4 5/8
15.53	0.611	48.79	1.92	J 1/4	4 3/4
15.70	0.618	49.32	1.94	J 1/2	5
15.80	0.622	49.64	1.95	K	5 1/8
15.90	0.626	49.95	1.97	K 1/4	5 1/4
16.00	0.630	50.27	1.98	K 1/2	5 3/8
16.10	0.634	50.58	1.99	L	5 1/2
16.30	0.642	51.21	2.02	L 1/4	5 3/4
16.41	0.646	51.55	2.03	L 1/2	5 7/8
16.51	0.650	51.87	2.04	M	6
16.71	0.658	52.50	2.07	M 1/2	6 1/4
16.92	0.666	53.16	2.09	N	6 1/2
17.13	0.674	53.82	2.12	N 1/2	6 3/4
17.35	0.683	54.51	2.15	O	7
17.45	0.687	54.82	2.16	O 1/2	7 1/4
17.75	0.699	55.76	2.20	P	7 1/2
17.97	0.707	56.45	2.22	P 1/2	7 3/4
18.19	0.716	57.15	2.25	Q	8
18.35	0.722	57.65	2.27	Q 1/2	8 1/4
18.53	0.729	58.21	2.29	Q 3/4	8 1/2
18.61	0.733	58.47	2.30	R	8 5/8
18.69	0.736	58.72	2.31	R 1/4	8 3/4
18.80	0.740	59.06	2.32	R 1/2	8 7/8
18.89	0.748	59.34	2.35	R 3/4	9
19.10	0.752	60.00	2.36	S	9 1/8
19.22	0.757	60.38	2.38	S 1/4	9 1/4
19.31	0.760	60.66	2.39	S 1/2	9 3/8
19.41	0.764	60.98	2.40	S 3/4	9 1/2
19.51	0.768	61.29	2.41	T	9 5/8
19.62	0.772	61.64	2.43	T 1/4	9 3/4
19.84	0.781	62.33	2.45	T 1/2	10
20.02	0.788	62.89	2.48	U	10 1/4
20.20	0.797	63.46	2.50	U 1/2	10 1/2
20.32	0.800	63.84	2.51	V	10 5/8
20.44	0.805	64.21	2.53	V 1/4	10 3/4
20.68	0.814	64.97	2.56	V 1/2	11
20.76	0.817	65.22	2.57	W	11 1/8
20.85	0.821	65.50	2.58	W 1/4	11 1/4
20.94	0.824	65.78	2.59	W 1/2	11 3/8
21.08	0.830	66.22	2.61	W 3/4	11 1/2
21.18	0.834	66.54	2.62	X	11 5/8
21.24	0.836	66.73	2.63	X 1/4	11 3/4
21.30	0.839	66.92	2.64	X 1/2	11 7/8
21.49	0.846	67.51	2.66	Y	12
21.69	0.854	68.14	2.68	Y 1/2	12 1/4
21.89	0.862	68.77	2.71	Z	12 1/2
22.10	0.870	69.43	2.73	Z +1/2	12 3/4
22.33	0.879	70.15	2.76	Z+1	13
22.60	0.890	71.00	2.80	Z+1.5	13.5
22.69	0.893	71.28	2.81	Z+2	-
22.92	0.902	72.00	2.83	Z+2.5	-
23.06	0.908	72.45	2.85	Z+3	-
23.24	0.915	73.01	2.87	Z+3.5	-
23.47	0.924	73.73	2.90	Z+4	-
23.55	0.927	73.98	2.91	Z+4.5	-
23.87	0.940	74.99	2.95	Z+5	-
24.27	0.956	76.25	3.00	Z+6	-

Other helpful things to note:

The average women's ring size is 6.5-7 and the average ring size for men is about 9-10.
You want the ring to fit snug and secure on the finger to avoid the ring spinning the stone around to the bottom of your finger while you wear it. It is ok if it's a little hard to get over the knuckle as long as it's comfortable while you wear it. Many people have larger knuckles than their finger, and so it is always recommended to try and get sized by a professional when possible to determine the best fit for you.

For any further assistance please contact info@ringcometrue.com.