Ring Sizes Explained

Ring Sizes on this site.

You will find that most ring sizes on this site are quoted in the UK standard system of A-Z.

If you wish to find the equivalent size for your country, please use the conversion chart below.

Diameter Circumference Sizes
(Inch) (mm) (Inch) (mm) UK, Ireland & Australia USA & Canada Japan Switzerland France Germany
0.586 14.884 1.850 47 H 4 7 6.5 46.5 15
0.602 15.291 1.890 48 I 4.5 8 7.75 47.75 15.5
0.619 15.723 1.929 49 J 5 9 9 49 15.75
0.635 16.129 1.969 50 K 5.5 10 10.25 50.25 16.25
0.652 16.561 2.047 52 L 6 11 11.5 51.5 16.5
0.668 16.967 2.087 53 M 6.5 13 12.75 52.75 17
0.685 17.399 2.126 54 N 7 14 14 54 17.25
0.701 17.805 2.165 55 O 7.5 15 15.25 55.25 17.75
0.717 18.212 2.244 57 P 8 16 16.5 56.5 18
0.734 18.644 2.283 58 Q 8.5 17 17.75 57.75 18.5
0.750 19.050 2.362 60 R 9 18 19 59 19
0.767 19.482 2.482 60 S 9.5 19 20.25 60.25 19.5
0.783 19.888 2.441 62 T 10 20 21.5 61.5 20
0.800 20.320 2.480 63 U 10.5 22 22.75 62.75 20.5
0.816 20.726 2.520 64 V 11 23 24 64 20.75
0.833 21.158 2.559 65 W 11.5 24 25.25 65.25 21
0.849 21.565 2.638 67 X 12 25 26.5 66.5 21.25
0.866 21.996 2.677 68 Y 12.5 26 27.75 67.75 21.75
0.882 22.403 2.717 69 Z 13 27 29 69 22

About the Author

Malcolm Scott

I have been working in the fashion and jewellery industry since the mid 1970s when I started work in a seaside gift shop selling costume jewellery and fashion accessories. I started my own business in 1995 as the owner of Ringmania. I am currently working as a website designer at Talanda and updating a number of my current websites including ringmania.com, ringmania.co.uk and ringmania.ie Please contact me if you have any questions about Ringmania or our products/services.

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