RING SIZE GUIDE

How to measure your ring size

You can measure your ring size using the internal diameter of a ring (take an existing ring and measure its diameter across from each side of the ring) or circumference (measuring around your finger) as follows:

  • Wrap a narrow strip of paper or piece of string comfortably around your intended finger.
  • Mark the end (where it meets) and measure the distance. This is the circumference.
  • Match the measurement to the circumference column in the ring size chart below. If it falls between 2 sizes, we recommend getting the larger size.

Ring sizes

RING
DIAMETER

FINGER
CIRCUMFERENCE
RING SIZE
(mm) (mm) UK US EU China
14.8 46.5 H 3 3/4 46 1/2 7
15.2 47.8 I 4 1/8 47 1/2 8
15.6 49.0 J 4 5/8 48 1/2 9
16.0 50.3 K 5 1/4 50 10
16.4 51.5 L 5 1/2 51 11
16.8 52.8 M 6 52 1/2 12
17.2 54.0 N 6 1/2 53 1/2 13
17.4 54.7 O 7 55 14
18.0 56.6 P 7 1/2 56 15
18.4 57.8 Q 8 57 1/2 16
19.0 59.1 R 8 5/8 59 17
19.2 60.3 S 9 1/8 601/4 19
20 62.8 U 10 1/4 623/4 21
20.3 63.8 V 11 63 23