Wrap a piece of string or a strip of paper around your finger.
Mark the point where the two ends meet.
Measure the string or paper against a ruler to get the circumference of your finger.
Divide that by 3.14 to get the diameter of your finger.
Look up your ring size using the form above.

International Ring Size Convertor
American Size (Approx.)	UK Size (Approx.)	European Size (Approx.)	Japanese Size (Approx.)	Inside Diameter (mm)
5	J	49	11	15.40
5.5	J 1/2	50	12	15.81
6	L	51	13	16.23
6.5	M	53	14	16.68
7	N	54	15	17.09
7.5	O	55	16	17.52
8	P	56	17	17.90
8.5	P 1/2	58	18	18.28
9	R	59	19	18.69
9.5	S	60	20	19.12
10	T	62	21	19.55
10.5	U 1/2	63	22	20.05
11	V 1/2	64	23	20.37
11.5	W	66	24	20.83
12	X 1/2	67	25	21.32
12.5	Y 1/2	68	26	21.65
13	Z 1/2	69	27	22.10

You can refer to Online Conversion - Ring Size Conversion, http://www.onlineconversion.com/ring_size.htm

Date：2008-1-31　【Return】

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