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Use the chart below to find your perfect ring size. Measure your finger in millimeters and match it to your size.

---> US / UK / EU Ring Size Chart <---

US Size UK Size EU Size Diameter (mm) Circumference (mm)
5 J 1/2 49 15.70 49.32
5.5 K 1/2 51 16.10 50.58
6 L 1/2 52 16.51 51.87
6.5 M 1/2 53 16.92 53.16
7 N 1/2 54 17.35 54.51
7.5 O 1/2 56 17.75 55.76
8 P 1/2 57 18.19 57.15
8.5 Q 1/2 58 18.53 58.21
9 R 1/2 59 19.84 59.69
9.5 S 1/2 61 19.41 60.98
10 T 1/2 62 19.84 62.33
10.5 U 1/2 63 20.20 63.46
11 V 1/2 65 20.68 64.97
11.5 W 1/2 66 21.08 66.22
12 X 1/2 67 21.49 67.51
12.5 Z 68 21.89 68.77
13 Z+1 69 22.33 70.12

How to Measure Your Ring Size

  1. Wrap a thin strip of paper or string around your finger.
  2. Mark where the paper meets and measure the length in millimeters — this is your circumference.
  3. Divide by 3.14 to get your diameter.
  4. Match your measurement to the chart above.

Tip: Measure at the end of the day when your fingers are at their largest. If you are between sizes, size up.