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Home > Tips and Advice> Ring Size Guide

Ring Size Guide

At Harry Fay Boutique we perfectly understand that while shopping for a ring online you might be concerned if the ring doesn't fit well or that you get the size wrong. You shouldn't, we are here for you! We have prepared the Ring Size Guide to help you to determine the correct ring size. And if the ring you buy from us does not fit, we will exchange it to any size you want for free! So relax, and find your ring size with a peace of mind!

So, not sure about your ring size? We have prepared illustrated step-by-step instructions to help you measure your ring size accurately. Check them below:

Method 1

Method 1

Determine Your Ring Size Using Your Own Ring

Read more >>
Method 2

Method 2

Determine Your Ring Size Using Paper or String

Read more >>

Engagement ring advice for men

You want her to feel extra special on this big day, but also you want to avoid disappointment when the ring doesn't fit. Read our tips on how to measure her ring size without spoiling the surprise!

Read more >>

Conversion chart for ring sizes

Inside diameterInside circumferenceSizes
(in)(mm)(in)(mm)United States
and Canada		United Kingdom,
Ireland,
Australia and
New Zealand		India,
China,
Japan,
South America		Italy,
Spain,
Netherlands,
Switzerland
0.57 14.48 1.79 45.5 3½ G   5.5
0.578 14.68 1.82 46.1 3¾ G½ 6 6
0.586 14.88 1.84 46.8 4 H 7 6.75
0.594 15.09 1.87 47.4 4¼ H½   7.5
0.602 15.29 1.89 48 4½ I   8
0.61 15.49 1.92 48.7 4¾ J   8.75
0.618 15.7 1.94 49.3 5 J½ 9 9.25
0.626 15.9 1.97 50 5¼ K   10
0.634 16.1 1.99 50.6 5½ K½ 10 10.5
0.642 16.31 2.02 51.2 5¾ L   11.25
0.65 16.51 2.04 51.9 6 L½ 11 11.75
0.658 16.71 2.07 52.5 6¼ M 12 12.5
0.666 16.92 2.09 53.1 6½ M½ 13 13.25
0.674 17.12 2.12 53.8 6¾ N   13.75
0.682 17.32 2.14 54.4 7 N½ 14 14.5
0.69 17.53 2.17 55.1 7¼ O   15
0.698 17.73 2.19 55.7 7½ O½ 15 15.75
0.706 17.93 2.22 56.3 7¾ P   16.25
0.714 18.14 2.24 57 8 P½ 16 17
0.722 18.34 2.27 57.6 8¼ Q   17.5
0.73 18.54 2.29 58.3 8½ Q½ 17 18.25
0.738 18.75 2.32 58.9 8¾ R   19
0.746 18.95 2.34 59.5 9 R½ 18 19.5
0.754 19.15 2.37 60.2 9¼ S   20.25
0.762 19.35 2.39 60.8 9½ S½ 19 20.75
0.77 19.56 2.42 61.4 9¾ T   21.5
0.778 19.76 2.44 62.1 10 T½ 20 22
0.786 19.96 2.47 62.7 10¼ U 21 22.75
0.794 20.17 2.49 63.4 10½ U½ 22 23.25
0.802 20.37 2.52 64 10¾ V   24
0.81 20.57 2.54 64.6 11 V½ 23 24.75
0.818 20.78 2.57 65.3 11¼ W   25.25
0.826 20.98 2.59 65.9 11½ W½ 24 26
0.834 21.18 2.62 66.6 11¾ X   26.5
0.842 21.39 2.65 67.2 12 X½ 25 27.25
0.85 21.59 2.67 67.8 12¼ Y   27.75
0.858 21.79 2.7 68.5 12½ Z 26 28.5
0.866 22 2.72 69.1 12¾ Z½   29
0.874 22.2 2.75 69.7 13   27 29.75
0.882 22.4 2.77 70.4 13¼ Z1   30.5
0.89 22.61 2.8 71 13½     31
0.898 22.81 2.82 71.7 13¾ Z2   31.75
0.906 23.01 2.85 72.3 14 Z3   32.25
0.914 23.22 2.87 72.9 14¼     33
0.922 23.42 2.9 73.6 14½ Z4   33.5

The full chart can be found here.

Table used on Creative Commons Attribution-ShareAlike License


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