How to find the right ring size

Do you need help finding the correct ring size? You’ve come to the right place. You can use the table provided below to find the size you need, but first, there are a couple of important things to bear in mind.

  1. Pick the correct finger to measure. Do you intend to wear the ring on your index finger, “ring” finger or pinky? Don’t forget that our hands are different sizes, so don’t assume because a ring fits the pinky finger on your left hand, it will automatically fit your right pinky.

  2. Our hands and fingers change size slightly every day and at different times of the day, for a number of reasons. It’s a good idea to measure in the afternoon, since that is usually the warmest part of the day, and our fingers are bigger then. We don’t want a ring that fits snugly in the morning, but is too tight later in the day.

  3. The correct size ring will fit over your knuckle without much difficulty, but is not so loose it’s likely to slip off.

So, how to measure? There are two ways we recommend. The first is to take a short piece (100 mm or 4″ is more than long enough) of string or folded paper and wrap it around the chosen finger. Mark the point where the end overlaps the remainder of the string or paper, then measure the length of that part with a ruler. Then look up the closest value equal to or above the length you measured in the Inside Circumference column of the chart below. Look across to the Australian Size column, and you will see the right ring size for you.

The second method is handy if you are buying for someone else, don’t want them to know, and have access to one of their rings (but see the note above about choice of finger). You can, of course, use it when purchasing a ring for yourself. Using a ruler, measure the width of the ring in millimetres. Make sure you measure at the widest part (i.e. straight through the centre), and measure from the inside of the band, not the outside. That is, you are measuring the size of the hole your finger will go in. Find the equal or closest larger size in the Inside Diameter column on the chart, and the Australian Size column will contain the ring size you need.

Inside circumference
(mm)
Inside diameter
(mm)
Size
(Asia, US, Canada)
Size
(Australia, UK)
37.8 12  1/2 A
38.4 12.2  3/4 A 1/2
39.1 12.4 1    B
39.7 12.6 1 1/4 B 1/2
40.4 12.9 1 1/2 C
41 13.1 1 3/4 C 1/2
41.6 13.3 2    D
42.3 13.5 2 1/4 D 1/2
42.9 13.7 2 1/2 E
43.5 13.9 2 3/4 E 1/2
44.2 14.1 3    F
44.8 14.3 3 1/4 F 1/2
45.5 14.5 3 1/2 G
46.1 14.7 3 3/4 G 1/2
46.7 14.9 4    H
47.4 15.1 4 1/4 H 1/2
48 15.3 4 1/2 I
48.7 15.5 4 3/4 J
49.3 15.7 5    J 1/2
49.9 15.9 5 1/4 K
50.6 16.1 5 1/2 K 1/2
51.2 16.3 5 3/4 L
51.8 16.5 6    L 1/2
52.5 16.7 6 1/4 M
53.1 16.9 6 1/2 M 1/2
53.8 17.1 6 3/4 N
54.4 17.3 7    N 1/2
55 17.5 7 1/4 O
55.7 17.7 7 1/2 O 1/2
56.3 17.9 7 3/4 P
56.9 18.1 8    P 1/2
57.6 18.3 8 1/4 Q
58.2 18.5 8 1/2 Q 1/2
58.9 18.7 8 3/4 R
59.5 18.9 9    R 1/2
60.1 19.2 9 1/4 S
60.8 19.4 9 1/2 S 1/2
61.4 19.6 9 3/4 T
62.1 19.8 10    T 1/2
62.7 20 10 1/4 U
63.3 20.2 10 1/2 U 1/2
64 20.4 10 3/4 V
64.6 20.6 11    V 1/2
65.2 20.8 11 1/4 W
65.9 21 11 1/2 W 1/2
66.5 21.2 11 3/4 X
67.2 21.4 12    X 1/2
67.8 21.6 12 1/4 Y
68.4 21.8 12 1/2 Z
69.1 22 12 3/4 Z 1/2
69.7 22.2 13     
70.3 22.4 13 1/4 Z1
71 22.6 13 1/2  
71.6 22.8 13 3/4 Z2
72.3 23 14    Z3
72.9 23.2 14 1/4  
73.5 23.4 14 1/2 Z4

As you can see, there are a great many sizes available, and we can usually only keep a couple of the most common sizes in stock for each design. If you need a size that isn’t showing as available and are willing to wait for us to order it in, just drop us a note, and we will be happy to do so.