Finger Ring Size measuring and Conversion chart:

Yes, we can determine the ring size at home! There is some Procedure and a table down below that will help you easily determine your ring size. You can measure the ring size at home by yourself or you can ask your jeweler to take the measurement of your Ring finger.

For the measuring the ring size at home:

There are 2 ways to determine the ring size at home:

Procedure 1:

Take any of your old Rings and place them on a Ruler.
You can mark both sides of the ring on the Ruler.
With the help of the measurement on the ruler, you can now determine your Ring size from the table below.

Procedure 2:

You can either take the small strip of tape or of thread to measure the area on the finger which will be occupied by the Ring. With the help of a marker, mark the circle on the sting or tape where it gets a complete circle. This helps you to measure it on the scale or ruler, with the mm which we are going to provide.

Step 1:

Take a small thin strip of tape or Thread.
Wrap the tape/Thread around your ring finger.
And with a marker, Mark the spot where the Tape/Thread meets.

Step 2:

Measure the length of the tape or thread with your Scale or a ruler.
Use the following table to determine your ring size.

Ring size conversion chart

USA	Diameter (mm)	Circumference (mm)	Diameter (inches)	Circumference (inches)	Britain	Europe	Japan, China, India
0	11.54	36.25	0.454	1.427
	11.9	37.38	0.469	1.472	A
	12	37.7	0.472	1.484			0
	12.1	38.01	0.476	1.496	A1/2
	12.3	38.64	0.484	1.521	B
1	12.37	38.86	0.487	1.53
	12.5	39.27	0.492	1.546	B1/2
1-1/4	12.58	39.52	0.495	1.556
	12.7	39.9	0.5	1.571	C
1-1/2	12.78	40.15	0.503	1.581		0.15
	12.9	40.53	0.508	1.596	C1/2	0.53
1-3/4	13	40.84	0.512	1.608		0.84	1
	13.05	41	0.514	1.614		1
	13.1	41.15	0.516	1.62	D	1.15
2	13.21	41.5	0.52	1.634		1.5
	13.3	41.78	0.524	1.645	D1/2	1.78
	13.33	41.88	0.525	1.649		1.88	2
	13.37	42	0.526	1.654		2
2-1/4	13.41	42.13	0.528	1.659		2.13
	13.5	42.41	0.531	1.67	E	2.41
2-1/2	13.61	42.76	0.536	1.683		2.76
	13.66	42.91	0.538	1.689		2.91	3
	13.69	43	0.539	1.693	E1/2	3
2-3/4	13.82	43.42	0.544	1.709		3.42
	13.9	43.67	0.547	1.719	F	3.67
	14	43.98	0.551	1.731		3.98	4
	14.01	44	0.552	1.732		4
3	14.05	44.14	0.553	1.738		4.14
	14.1	44.3	0.555	1.744	F1/2	4.3
3-1/4	14.24	44.74	0.561	1.761		4.74
	14.3	44.92	0.563	1.769	G	4.92
	14.32	45	0.564	1.772		5
	14.33	45.02	0.564	1.772		5.02	5
3-1/2	14.45	45.4	0.569	1.787		5.4
	14.5	45.55	0.571	1.793	G1/2	5.55
	14.64	46	0.576	1.811		6
3-3/4	14.65	46.02	0.577	1.812		6.02
	14.66	46.06	0.577	1.813		6.06	6
	14.7	46.18	0.579	1.818	H	6.18
4	14.86	46.68	0.585	1.838		6.68
	14.9	46.81	0.587	1.843	H1/2	6.81
	14.96	47	0.589	1.85		7
	15	47.12	0.591	1.855		7.12	7
4-1/4	15.07	47.34	0.593	1.864		7.34
	15.1	47.44	0.594	1.868	I	7.44
4-1/2	15.27	47.97	0.601	1.889		7.97
	15.28	48	0.602	1.89		8
	15.3	48.07	0.602	1.893	I1/2	8.07
	15.33	48.16	0.604	1.896		8.16	8
4-3/4	15.48	48.63	0.609	1.915		8.63
	15.5	48.69	0.61	1.917	J	8.69
	15.6	49	0.614	1.929		9
	15.66	49.2	0.617	1.937		9.2	9
5	15.7	49.32	0.618	1.942	J1/2	9.32
5-1/4	15.9	49.95	0.626	1.967	K	9.95
	15.92	50	0.627	1.969		10
	16	50.27	0.63	1.979		10.27	10
5-1/2	16.1	50.58	0.634	1.991	K1/2	10.58
	16.23	51	0.639	2.008		11
5-3/4	16.31	51.24	0.642	2.017	L	11.24
	16.33	51.3	0.643	2.02		11.3	11
6	16.51	51.87	0.65	2.042	L1/2	11.87
	16.55	52	0.652	2.047		12
	16.66	52.34	0.656	2.061		12.34	12
	16.7	52.46	0.657	2.065	M	12.46
6-1/4	16.73	52.56	0.659	2.069		12.56
	16.87	53	0.664	2.087		13
	16.9	53.09	0.665	2.09	M1/2	13.09
6-1/2	16.92	53.16	0.666	2.093		13.16
	17	53.41	0.669	2.103		13.41	13
	17.1	53.72	0.673	2.115	N	13.72
6-3/4	17.14	53.85	0.675	2.12		13.85
	17.19	54	0.677	2.126		14
	17.3	54.35	0.681	2.14	N1/2	14.35
	17.33	54.44	0.682	2.143		14.44	14
7	17.35	54.51	0.683	2.146		14.51
	17.5	54.98	0.689	2.165	O	14.98
7-1/4	17.56	55	0.691	2.165		15
	17.66	55.48	0.695	2.184		15.48	15
	17.7	55.61	0.697	2.189	O1/2	15.61
7-1/2	17.75	55.76	0.699	2.195		15.76
	17.83	56	0.702	2.205		16
	17.9	56.23	0.705	2.214	P	16.23
7-3/4	17.97	56.45	0.707	2.222		16.45
	18	56.55	0.709	2.226		16.55	16
	18.1	56.86	0.713	2.239	P1/2	16.86
	18.14	57	0.714	2.244		17
8	18.19	57.15	0.716	2.25		17.15
	18.3	57.49	0.72	2.263	Q	17.49
	18.33	57.59	0.722	2.267		17.59	17
8-1/4	18.39	57.77	0.724	2.274		17.77
	18.46	58	0.727	2.283		18
	18.5	58.12	0.728	2.288	Q1/2	18.12
8-1/2	18.59	58.4	0.732	2.299		18.4
	18.66	58.62	0.735	2.308		18.62	18
	18.7	58.75	0.736	2.313	R	183/4
8-3/4	18.78	59	0.739	2.323		19
	18.9	59.38	0.744	2.338	R1/2	19.38
9	18.99	59.66	0.748	2.349		19.66
	19	59.69	0.748	2.35		19.69	19
	19.1	60	0.752	2.362	S	20
9-1/4	19.22	60.38	0.757	2.377		20.38
	19.3	60.63	0.76	2.387	S1/2	20.63
	19.33	60.73	0.761	2.391		20.73	20
9-1/2	19.41	60.98	0.764	2.401		20.98
	19.42	61	0.765	2.402		21
	19.5	61.26	0.768	2.412	T	21.26
9-3/4	19.63	61.67	0.773	2.428		21.67
	19.66	61.76	0.774	2.431		21.76	21
	19.7	61.89	0.776	2.437	T1/2	21.89
	19.74	62	0.777	2.441		22
10	19.84	62.33	0.781	2.454		22.33
	19.9	62.52	0.783	2.461	U	22.52
	20	62.83	0.787	2.474		22.83	22
10-1/4	20.05	63	0.789	2.48		23
	20.1	63.15	0.791	2.486	U1/2	23.15
10-1/2	20.24	63.59	0.797	2.504		23.59
	20.3	63.77	0.799	2.511	V	23.77
	20.33	63.87	0.8	2.515		23.87	23
	20.37	63.99	0.802	2.519		23.99
10-3/4	20.46	64.28	0.806	2.531		24.28
	20.5	64.4	0.807	2.535	V1/2	24.4
	20.66	64.91	0.813	2.556		24.91	24
11	20.68	64.97	0.814	2.558		24.97
	20.69	65	0.815	2.559	W	25
11-1/4	20.88	65.6	0.822	2.583		25.6
	20.9	65.66	0.823	2.585	W1/2	25.66
	21	65.97	0.827	2.597		25.97	25
	21.01	66	0.827	2.598		26
11-1/2	21.08	66.22	0.83	2.607		26.22
	21.1	66.29	0.831	2.61	X	26.29
10-3/4	21.3	66.92	0.839	2.635	X1/2	26.92
	21.33	67.01	0.84	2.638		27.01	26
12	21.49	67.51	0.846	2.658	Y	27.51
	21.65	68.02	0.852	2.678		28.02
	21.66	68.05	0.853	2.679		28.05	27
12-1/4	21.71	68.2	0.855	2.685	Y1/2	28.2
12-1/2	21.89	68.77	0.862	2.707	Z	28.77
	21.96	68.99	0.865	2.716		28.99
	22	69.12	0.866	2.721		29.12	28
	22.1	69.43	0.87	2.733	Z1/2	29.43
12-3/4	22.12	69.49	0.871	2.736		29.49
	22.28	69.99	0.877	2.756	Z+1	29.99
13	22.33	70.15	0.879	2.762		30.15	29
	22.5	70.69	0.886	2.783	Z+11/2	30.69
13-1/4	22.54	70.81	0.887	2.788		30.81
	22.6	71	0.89	2.795		31
	22.66	71.19	0.892	2.803		31.19	30
	22.7	71.31	0.894	2.807	Z+2	31.31
13-1/2	22.75	71.47	0.896	2.814		31.47
13-3/4	22.92	72.01	0.902	2.835	Z+21/2	32.01
	23	72.26	0.906	2.845		32.26	31
	23.1	72.57	0.909	2.857	Z+3	32.57
14	23.16	72.76	0.912	2.865		32.76
	23.24	73.01	0.915	2.874		33.01
	23.3	73.2	0.917	2.882	Z+31/2	33.2
	23.34	73.32	0.919	2.887		33.32
	23.33	73.29	0.919	2.885		33.29	32
14-1/4	23.37	73.42	0.92	2.891		33.42
	23.5	73.83	0.925	2.907	Z+4	33.83
14-1/2	23.55	73.98	0.927	2.913		33.98
	23.66	74.33	0.931	2.926		34.33	33
	23.7	74.46	0.933	2.931	Z+41/2	34.46
14-3/4	23.78	74.71	0.936	2.941		34.71
	23.87	74.99	0.94	2.952		34.99
	23.9	75.08	0.941	2.956	Z+5	35.08
15	24	75.4	0.945	2.969		35.4	34
	24.1	75.71	0.949	2.981	Z+51/2	35.71
15-1/4	24.19	76	0.952	2.992		36
	24.3	76.34	0.957	3.006	Z+6	36.34
	24.33	76.43	0.958	3.009		36.43	35
15-1/2	24.41	76.69	0.961	3.019		36.69
	24.51	77	0.965	3.031	Z+61/2	37
15-3/4	24.61	77.31	0.969	3.044		37.31
	24.66	77.47	0.971	3.05		37.47	36
	24.7	77.6	0.972	3.055	Z+7	37.6
16	24.83	78	0.978	3.071		38
	24.9	78.23	0.98	3.08	Z+71/2	38.23
16-1/4	25	78.54	0.984	3.092		38.54	37

Ring size at home?