ring size alteration
Ring Size Chart
Ring size
HK 6
HK 7
HK 8
HK 9
HK 10
HK 11
HK 12
HK 13
HK 14
HK 15
HK 16
HK 17
HK 18
HK 19
HK 20
HK 21
HK 22
HK 23
HK 24
HK 25
HK 26
HK 27
HK 28
HK 29
​
US 3
US 3.5
US 4
US 4.5
US 5
US 5.5
US 6
US 6.5
US 7
US 7.5
US 8
US 8.5
US 9
US 9.5
US 10
US 10.5
US 11
US 11.5
US 12
US 12.5
US 13
US 13.5
US 14
US 14.5
​
​
​
Inner Diameter​
14.1mm
14.3mm
14.7mm
14.9mm
15.3mm
15.7mm
16.1mm
16.5mm
16.7mm
17.1mm
17.3mm
17.7mm
18.2mm
18.5mm
18.8mm
19.2mm
19.4mm
19.8mm
20.2mm
20.6mm
21.0mm
21.2mm
21.6mm
22.0mm
​
14.0mm
14.4mm
14.8mm
15.2mm
15.6mm
16.0mm
16.5mm
16.9mm
17.3mm
17.7mm
18.2mm
18.6mm
19.0mm
19.4mm
19.8mm
20.2mm
20.6mm
21.0mm
21.4mm
21.8mm
22.2mm
22.6mm
23.0mm
23.4mm
​
​
Inner Circumference
44.3mm
45.0mm
46.2mm
46.9mm
48.1mm
49.4mm
50.6mm
51.9mm
52.5mm
53.8mm
54.4mm
55.7mm
57.2mm
58.2mm
59.1mm
60.4mm
61.0mm
62.3mm
63.5mm
64.8mm
66.0mm
66.7mm
67.9mm
69.2mm
​
44.0mm
45.3mm
46.5mm
47.8mm
49.1mm
50.3mm
51.9mm
53.1mm
54.4mm
55.7mm
57.2mm
58.5mm
59.7mm
61.0mm
62.3mm
63.5mm
64.8mm
66.0mm
67.3mm
68.5mm
69.8mm
71.0mm
72.3mm
73.6mm