For the most accurate reading we recommend using a ring sizer.

  1. Find a piece of string or strip of paper no wider than 1.4 cm (1/2 inch).
  2. Wrap it around the index finger just before the knuckle.
  3. Use a pen to mark the point on the string/paper where it overlaps, forming a complete circle.
  4. With a ruler, measure the length from the starting end of the string/paper to the pen mark.
  5. Use the chart below to determine your UK ring size.
 
(mm)UK SizeEU SizeUS Size
37.8A1/2
39.1B1
40.4C1 1/2
41.7D41 1/22
42.1D 1/242 1/82 1/4
42.9E42 3/42 1/2
43.4E 1/243 3/82 3/4
44.2F443
44.4F 1/244 5/83 1/4
45.5G45 1/43 1/2
45.7G 1/245 7/83 3/4
46.8H46 1/24
46.8H 1/247 1/84 1/4
48.0I47 3/44 1/2
48.7J48 3/84 3/4
50.0K49 5/85 1/4
50.2K 1/250 1/45 1/2
51.2L50 7/85 3/4
51.5L 1/251 1/26
51.9M52 1/86 1/4
52.5M 1/252 3/46 1/2
53.1N53 5/86 3/4
54.5O547
54.8O 1/254 5/87 1/4
55.7P55 1/47 1/2
56.4P 1/255 7/87 3/4
57.1Q56 1/28
57.6Q 1/257 1/88 1/4
58.4R57 3/48 1/2
59R 1/258 3/88 3/4
60S599
60.6S 1/259 5/89 1/4
61.3T60 7/89 3/4
62.3T 1/261 1/210
62.7U62 1/810 1/4
63.4U 1/262 3/410 1/2
63.8V63 3/810 3/4
64.9V 1/26411
65.3W64 5/811 1/4
65.7W 1/265 1/411 1/2
66.5X65 7/811 3/4
67.5Y66 1/212
68.1Y 1/267 1/212 1/4
68.7Z67 3/412 1/2
69.4Z 1/268 3/812 3/4