Info size Guide

SIZE

 CIRCUMFERENCE (MM)

DIAMETER (MM)
UK/USA/AUS LETTER
4 44 14.10 3 F
5 45 14.35 3 1/2 G
6 46 14.65 3 3/4 H
7 47 15.04 4 I
8 48 15.20 4 1/2 I 1/2
9 49 15.40 5 J
10 50 15.80 5 1/8 K
11 51 16.10 5 3/4 L
12 52 16.51 6 M
13 53 16.92 6 1/2 N
14 54 17.15 6 3/4 N 1/2
15 55 17.35 7 O
16 56 17.75 7 1/2 P
17 57 18.19 8 Q
18 58 18.61 8 1/2 R
19 59 18.85 9 R 1/2
20 60 19.10 9 1/8 S

How to measure your own ring size:

 

Measure the inner diameter of a ring
that you’ve already own.

*Example:
16,5mm = SIZE 12 | 6 UK/USA | M