Sizing

Choosing the right ring size.

If you are unsure on your ring size, you can use this simple ring chart to help you determine your perfect size.  If you have an existing ring that comfortably  fits your finger measure the internal diameter in millimeters then use the chart below to establish the correct size.

Alternatively take a piece of string or a strip of paper and wrap it around your finger. making a mark where the two end cross each other. Straighten it out and measure the total length in millimeters (which is the internal circumference). Divide the inside circumference by 3.14159 to get the diameter and use the chart to find the correct size. Measure a few times throughout the day for accuracy.

UK Ring  Size	Diameter (mm)	European size	UK Ring Size	Diameter (mm)	European size	UK Ring Size	Diameter (mm)	European size
A	12.1mm	39	J	15.5mm	49	S	19.2mm	59
B	12.5mm	40	K	15.9mm	50	T	19.6mm	60
C	12.9mm	41	L	16.3mm	52	U	20.0mm	61
D	13.2mm	42	M	16.7mm	53	V	20.4mm	62
E	13.7mm	43	N	17.1mm	54	W	20.8mm	63
F	14.1mm	45	O	17.5mm	55	X	21.2mm	64
G	14.5mm	46	P	17.9mm	56	Y	21.6mm	65
H	14.9mm	47	Q	18.3mm	57	Z	21.8mm	66
I	15.3mm	48	R	18.8mm	58