How to Measure Your Ring Size

All ring sizes on our site are standard U.S. sizes. The chart below shows how U.S. sizes map to finger circumference, as well as how U.S. sizes convert to standard sizes used in Canada, Australia, the UK and other countries. For a hands-on guide, you can download our free printable sizing chart.

Inside Circumference	US, Canada, Mexico	UK, Australia, Ireland, New Zealand, South Africa	France	Germany, Russia, Ukraine, Asia	India, China, Japan, South America, Turkey, Israel	Italy, Spain, Netherlands, Switzerland
IN	MM
1.74	44.2	3	F	44	14	4	4
1.77	44.8	3.25	F 1/2	44.625	14.25	—	4.625
1.79	45.5	3.5	G	45.25	14.5	5	5.25
1.82	46.1	3.75	G 1/2	45.875	14.75	6	5.875
1.84	46.8	4	H	46.5	15	7	6.5
1.87	47.4	4.25	H 1/2	47.125	15.25	—	7.125
1.89	48	4.5	I	47.75	15.5	8	7.75
1.92	48.7	4.75	J	48.375	—	—	8.375
1.94	49.3	5	J 1/2	49	15.75	9	9
1.97	50	5.25	K	49.625	16	—	9.625
1.99	50.6	5.5	K 1/2	50.25	16.25	10	10.25
2.02	51.2	5.75	L	50.875	—	11	10.875
2.04	51.9	6	L 1/2	51.5	16.5	12	11.5
2.07	52.5	6.25	M	52.125	16.75	—	12.125
2.09	53.1	6.5	M 1/2	52.75	17	13	12.75
2.12	53.8	6.75	N	53.375	—	—	13.375
2.14	54.4	7	N 1/2	54	17.25	14	14
2.17	55.1	7.25	O	54.625	17.5	—	14.625
2.19	55.7	7.5	O 1/2	55.25	17.75	15	15.25
2.22	56.3	7.75	P	55.875	—	—	15.875
2.24	57	8	P 1/2	56.5	18	16	16.5
2.27	57.6	8.25	Q	57.125	18.25	—	7.125
2.29	58.3	8.5	Q 1/2	57.75	18.5	17	17.75
2.32	58.9	8.75	R	58.375	18.75	—	18.375
2.34	59.5	9	R 1/2	59	19	18	19
2.37	60.2	9.25	S	59.625	19.25	—	19.625
2.39	60.8	9.5	S 1/2	60.25	19.5	19	20.25
2.42	61.4	9.75	T	60.875	19.75	—	20.875
2.44	62.1	10	T 1/2	61.5	20	20	21.25
2.47	62.7	10.25	U	62.125	20.25	21	22.125
2.49	63.4	10.5	U 1/2	62.75	20.5	22	22.75
2.52	64	10.75	V	63.375	—	—	23.375
2.54	64.6	11	V 1/2	64	20.75	23	24
2.57	65.3	11.25	W	64.625	—	—	24.625
2.59	65.9	11.5	W 1/2	65.25	21	24	25.25
2.62	66.6	11.75	X	65.875	—	—	25.875
2.65	67.2	12	X 1/2	66.5	21.25	25	26.5
2.68	68.1	12.25	Y	67.125	21.5	—	27.125
2.71	68.5	12.5	Z	67.75	21.75	26	27.75
2.72	69.1	12.75	Z 1/2	68.375	—	—	28.375
2.75	69.7	13	—	69	22	27	29