Ring Size Conversion Chart

Ukrainian	American/Canadian	European	British	Circumference, mm
15.70	5.00	50	J 1/2	50.00 mm
16.10	5.50	52	L	52.00 mm
16.50	6.00	53	M	53.00 mm
16.90	6.50	54	N	54.00 mm
17.40	7.00	55	O	55.00 mm
17.80	7.50	56	P	56.00 mm
18.20	8.00	58	Q	58.00 mm
18.50	8.50	59	R	59.00 mm
18.90	9.00	60	S	60.00 mm
19.40	9.50	61	T	61.00 mm
19.80	10.00	62.75	T1/2	63.50 mm
20.20	10.50	63	U1/2	63.00 mm
20.70	11.00	65	V1/2	65.00 mm
21.10	11.50	66	W1/2	66.00 mm
21.50	12.00	67	Y	67.00 mm
21.90	12.50	68	Z	68.00 mm
22.30	13.00	69	Z1/2	69.00 mm

To find your ring size:

1. Take a piece of thread
2. Wrap it around your finger
3. Measure the length of the thread
4. And write us the result in mm.

That's it. You don't need to read further))) But if you want to understand in more detail, we multiply your thread length by 3.14 and get your exact size.

For example:
5 cm * 3.14 = 15.7 size
5.5 cm * 3.14 = 17.3 size