For those interested in purchasing a ring but unsure of your ring size, here is a method of estimating your size (or how to determine your approximate US ring size if you know your size in a different measurement) without need for special tools.

• Cut a strip of paper no wider than 1/4" .

• Wrap the paper snugly around the base of your finger and mark the paper where it meets.

• Measure the marked length of paper and compare it to the chart below.
   

*Please Note: If your knuckle is significantly larger than the base of your finger, measure your knuckle using the method described above and choose a ring size in between the two measurements.

Measurement		Ring Size           Approximate Ring Size Equivalents
inches	mm.	US		British	French	German	Swiss	Japanese
1 3/4	44.5	3		F	44	14.0	4	4
1 25/32	45.2	3 1/2		G	45	14.5	5 1/2	6
1 13/16	46.0	4		H	47	15.0	7	7
1 7/8	47.6	4 1/2		I	48	15.5	9	8
1 15/16	49.2	5		J	50	15.8	10	9
2	50.8	5 1/2		K	52	16.0	12	10
2 1/16	52.4	6		L	53	16.5	13	12
2 3/32	53.2	6 1/2		M	54	17.0	14	13
2 1/8	54.0	7		N	55	17.3	15	14
2 3/16	55.6	7 1/2		O	57	17.8	16 1/2	15
2 1/4	57.2	8		P	58	18.0	18	16
2 5/32	54.8	8 1/2		Q	59	18.5	19	17
2 5/16	58.7	9		R	60	19.0	20	18
2 3/8	60.3	9 1/2		S	61	19.5	21 1/2	19
2 7/16	61.9	10		T	62	20.3	22	20
2 1/2	63.5	10 1/2		U	63	20.8	23 1/2	22
2 9/16	65.1	11		W	64	21.0	25	23
2 19/32	65.9	11 1/2		X	66	21.3	26	24
2 5/8	66.7	12		Y	67	21.8	27 1/2	25
2 11/16	68.3	12 1/2		Z	69	22.0	29	26
2 3/4	69.9	13		--	--	--	--	27

*You may also measure your finger size in centimeters. To convert to inches once you are through divide your results into 2.54 as 1 inch = approximately 2.54 centimeters.