ring size

Oxygen Jewelry uses standard Hong Kong ring sizes.

  • Fixed-size "Handmade Ring Series" can enjoy one free modification of the ring size. Subsequent modification of the ring size will cost HK$200 each time, please pay attention!

How to measure your ring size?

inner diameter(mm) Inner circumference (mm)
Hong Kong size
13.8 43.3
5
14.1 44.3
6
14.4 45.2
7
14.8 46.5
8
15.2 47.7
9
15.5 48.7
10
15.9 49.9 11
16.2 50.9 12
16.6 52.1 13
17.0 53.4 14
17.3 54.3 15
17.6 55.3 16
18.0 56.5 17
18.4 57.8 18
18.7 58.7 19
19.1 59.9 20
19.4 60.9 twenty one
19.8 62.2 twenty two
20.1 63.1 twenty three
20.4 64.4 twenty four
20.8 65.3 25