guide to ring sizes

guide to ring size

This handy guide will help you find the right size for your perfect ring.

guide to ring size

This handy guide will help you find the right size for your perfect ring. The table below shows exact millimetre sizes for standard rings in the UK and Ireland, you can also download our ring size converter to find the size of a ring you already have. If you are printing the converter please set your print settings at 100%, as this will ensure the sizes remain accurate.

Click here to download the ring size converter.

Inside Diameter (mm) Inside Circumference (mm) Size
9.91 31.13 -
10.72 33.68 -
11.53 36.22 -
11.95 37.54 A
12.18 38.26 A 1/2
12.37 38.86 B
12.6 39.58 B 1/2
12.78 40.15 C
13 40.84 C 1/2
13.21 41.5 D
13.41 42.13 D 1/2
13.61 42.76 E
13.83 43.45 E 1/2
14.05 44.14 F
14.15 44.45 F 1/2
14.25 44.77 F 3/4
14.36 45.11 G
14.45 45.4 G 1/4
14.56 45.74 G 1/2
14.65 46.02 H
14.86 46.68 H 1/2
15.04 47.25 I
15.27 47.97 I 1/2
15.4 48.38 J
15.53 48.79 J 1/4
15.7 49.32 J 1/2
15.8 49.64 K
15.9 49.95 K 1/4
16 50.27 K 1/2
16.1 50.58 L
16.3 51.21 L 1/4
16.41 51.55 L 1/2
16.51 51.87 M
16.71 52.5 M 1/2
16.92 53.16 N
17.13 53.82 N 1/2
17.35 54.51 O
17.45 54.82 O 1/2
17.75 55.76 P
17.97 56.45 P 1/2
18.19 57.15 Q
18.35 57.65 Q 1/2
18.53 58.21 Q 3/4
18.61 58.47 R
18.69 58.72 R 1/4
18.8 59.06 R 1/2
18.89 59.34 R 3/4
19.1 60 S
19.22 60.38 S 1/4
19.31 60.66 S 1/2
19.41 60.98 S 3/4
19.51 61.29 T
19.62 61.64 T 1/4
19.84 62.33 T 1/2
20.02 62.89 U
20.2 63.46 U 1/2
20.32 63.84 V
20.44 64.21 V 1/4
20.68 64.97 V 1/2
20.76 65.22 W
20.85 65.5 W 1/4
20.94 65.78 W 1/2
21.08 66.22 W 3/4
21.18 66.54 X
21.24 66.73 X 1/4
21.3 66.92 X 1/2
21.49 67.51 Y
21.69 68.14 Y 1/2
21.89 68.77 Z
22.1 69.43 Z +1/2
22.33 70.15 Z+1
22.6 71 Z+1.5
22.69 71.28 Z+2
22.92 72 Z+2.5
23.06 72.45 Z+3
23.24 73.01 Z+3.5
23.47 73.73 Z+4
23.55 73.98 Z+4.5
23.87 74.99 Z+5
24.27 76.25 Z+6

Once you have found your ring size and are ready for shop, search for your nearest master jeweller below.

 
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