Size Chart

Gauge Inches Millimetres
20 – 0.8
18 – 1
16 – 1.2
14 – 1.6
12 – 2
10 – 2.4
8 – 3
6 – 4
4 – 5
2 – 6
0 – 8
00 – 10
– 7/16β€³ 11
– 1/2β€³ 13
– 9/16β€³ 14
– 5/8β€³ 16
– 11/16β€³ 18
– 3/4β€³ 19
– 13/16β€³ 21
– 7/8β€³ 22
– 15/16β€³ 24
– 1β€³ 25
– 1 – 1/8β€³ 28
– 1 – 3/16β€³ 30
– 1 – 1/4β€³ 32
– 1 – 3/8β€³ 35
– 1 – 1/2β€³ 38
– 1 – 9/16β€³ 40
– 1 – 5/8β€³ 41
– 1 – 3/4β€³ 44
– 1 – 13/16β€³ 46
– 1 – 7/8β€³ 48
– 1 – 15/16β€³ 50
– 2β€³ 51

Body Piercing Conversion Chart

Ring Size Conversion Chart

Inside Circumference Sizes
MM Inches

US & Canada

(We use this size)

U.K, NewZealand
& Australia
China &Β Japan
46.7 1.84 Β 4 H 1/2 7
47.3 1.86 Β 4.5 I 1/2 8
49.3 1.94 5 J 1/2 9
50.6 1.99 Β 5.5 L 10
51.9 2.04 Β 6 M 12
53.2 2.09 Β 6.5 N 13
54.5 2.15 Β 7 O 14
55.8 2.2 Β 7.5 P 15
57.2 2.25 Β 8 Q 16
58.2 2.29 Β 8.5 Q 1/2 17
59.5 2.35 Β 9 R 1/2 18
61.0 2.40 Β 9.5 S 1/2 19
62.3 2.45 Β 10 T 1/2 20
63.5 2.50 Β 10.5 U 1/2 22
65.0 2.56 Β 11 V 1/2 23
66.2 2.61 Β 11.5 W 1/2 24
67.5 2.66 Β 12 Y 25
68.8 2.71 Β 12.5 Z 26
70.2 2.76 Β 13 Z+1 27
72 2.80 Β 13.5 Z+2 -
73 2.87 Β 14 Z+3 -
74 2.91 Β 14.5 Z+4 -
75 2.95 15Β  Z+5 -
76 2.87 Β 15.5 Z+6 -
77 2.90 Β 16 Z+7 -