Ring Size Guide

Ideally, we would size you in person for custom work. Otherwise, our best advice is to visit your local jewellery store to have your finger professionally sized.

 

Keep in mind that your your finger size can fluctuate throughout the day, seasons.  It is best to get measured multiple times to get an average ring size.

 

 

International Ring Sizes

Length Size
(mm)		 Interior Diameter
(mm)		 USA &
Canada		 Australia, UK
& Ireland		 France Germany
& Belgium		 Italy China, India
& Japan		 Swiss
48 15.27 4 ½ I ½   15 ¼ 8 8  
49 15.7 5 J ½   15 ¾ 9.5 9  
51 16.1 5 ½ L 51 ¾ 16 10.5 11 11 ¾
52 16.51 6 M 52 ¾ 16 ½ 11.5 12 12 ¾
53 16.92 6 ½ N 54 17 13 13 14
55 17.35 7 O 55 ¼ 17 ¼ 14.5 14 15 ¼
56 17.75 7 ½ P 56 ½ 17 ¾ 16 15 16 ½
57 18.19 8 Q 57 ¾ 18 17 16 17 ¾
58 18.53 8 ½ Q ½ 58 18 ½ 18.5 17  
59 18.89 9 R ½ 59 ¼ 19 19.5 18  
61 19.41 9 ½ S ½ 60 ½ 19 ½ 21 19  
62 19.84 10 T ½ 61 ¾ 20 22 20  
63 20.2 10 ½ U ½ 62 ¾ 20 ¼ 23.5 22  
65 20.68 11 V ½ 64 ¼ 20 ¾ 25 23  
66 21.08 11 ½ W ½ 66 21 26.5 24  
68 21.49 12 Y 67 ½ 21 ¼ 27.5 25 27 ½
69 21.89 12 ½ Z 68 ¾ 21 ¾ 28.5 26 28 ¾
70 22.33 13     22 30 27  



Have Any Questions?

If you have any questions about sizing please reach out!  info@arsaeusdesigns.com