Jewelers follow a standard set of ring sizes! Measure at any jeweler or Walmart and enter the size on any rings page. Or, use one of the three options below to find your size!

Request a free sizer

Please note that the sizer is only available for mailing to customers in the United States.

Measure your size with an existing ring!

Calculate your size without a ring

Use string to measure circumference of your ring finger. Have a friend mark where the string forms full circle, and measure that distance against a ruler, and plug into the calculator below.

Measurement tips

Ordered the wrong size?

Size chart

Measurement tips

Size chart

Diameter (inches)	Diameter (mm)	US/Canada Standard	British, Irish, Australian, Equivalent	Japanese Equivalent	Swiss Equivalent
0.458	11.6	0
0.466	11.8	0.25
0.474	12	0.50	A
0.482	12.2	0.75	A 1/2
0.49	12.4	1	B	1
0.498	12.6	1.25	B 1/2
0.506	12.9	1 1/2	C
0.514	13.1	1 3/4	C 1/2
0.522	13.3	2	D	2	1.5
0.53	13.5	2 1/4	D 1/2
0.538	13.7	2 1/2	E	3	2.75
0.546	13.9	2 3/4	E 1/2
0.554	14.1	3	F	4	4
0.562	14.3	3 1/4	F 1/2	5	5.25
0.57	14.5	3 1/2	G
0.578	14.7	3 3/4	G 1/2	6	6.5
0.586	14.9	4	H	7
0.594	15.1	4 1/4	H 1/2		7.75
0.602	15.3	4 1/2	I	8
0.61	15.5	4 3/4	J		9
0.618	15.7	5	J 1/2	9
0.626	15.9	5 1/4	K		10
0.634	16.1	5 1/2	K 1/2	10
0.642	16.3	5 3/4	L		11.75
0.65	16.5	6	L 1/2	11	12.75
0.658	16.7	6 1/4	M	12
0.666	16.9	6 1/2	M 1/2	13	14
0.674	17.1	6 3/4	N
0.682	17.3	7	N 1/2	14	15.25
0.69	17.5	7 1/4	O
0.698	17.7	7 1/2	O 1/2	15	16.5
0.706	17.9	7 3/4	P
0.714	18.1	8	P 1/2	16	17.75
0.722	18.3	8 1/4	Q
0.73	18.5	8 1/2	Q 1/2	17
0.738	18.7	8 3/4	R		19
0.746	18.9	9	R 1/2	18
0.754	19.2	9 1/4	S		20.25
0.762	19.4	9 1/2	S 1/2	19
0.77	19.6	9 3/4	T		21.5
0.778	19.8	10	T 1/2	20
0.786	20	10 1/4	U	21
0.794	20.2	10 1/2	U 1/2	22	22.75
0.802	20.4	10 3/4	V
0.81	20.6	11	V 1/2	23
0.818	20.8	11 1/4	W		25
0.826	21	11 1/2	W 1/2	24
0.834	21.2	11 3/4	X
0.842	21.4	12	X 1/2	25	27.5
0.85	21.6	12 1/4	Y
0.858	21.8	12 1/2	Z	26	28.75
0.866	22	12 3/4	Z 1/2
0.874	22.2	13		27
0.882	22.4	13 1/4	Z1
0.89	22.6	13 1/2
0.898	22.8	13 3/4	Z2
0.906	23	14	Z3
0.914	23.2	14 1/4
0.922	23.4	14 1/2	Z4
0.93	23.6	14 3/4
0.938	23.8	15
0.946	24	15 1/4
0.954	24.2	15 1/2
0.962	24.4	15 3/4
0.97	24.6	16
0.978	24.8	16.25
0.986	25	16.5
0.994	25.2	16.75
1.002	25.4	17
1.01	25.6	17.25
1.018	25.8	17.5
1.026	26	17.75
1.034	26.2	18
1.042	26.4	18.25
1.05	26.6	18.5
1.058	26.8	18.75
1.066	27	19
1.074	27.2	19.25
1.082	27.4	19.5
1.09	27.6	19.75
1.098	27.8	20
1.106	28	20.25
1.114	28.2	20.5
1.122	28.4	20.75
1.13	28.6	21

Categories

Jewelers follow a standard set of ring sizes! Measure at any jeweler or Walmart and enter the size on any rings page. Or, use one of the three options below to find your size!

Request a free sizer

Measure your size with an existing ring!

Calculate your size without a ring

Measurement tips

Size chart