6.5cm refers to a ring with a circumference of 65mm. Currently, there are four mainstream ring size standards in the market: Hong Kong version ring size, mainland version ring size, American version ring size, and European version ring size. They all have rings with a circumference of 65mm, and the specific selection needs to be based on the comparison table used by the store.
Mainland version ring size comparison chart
As shown in the table below,
The mainland version of the ring with a circumference of 65mm corresponds to size 25 and a diameter of 20.4mm.
Hong Kong Ring Size Comparison Table
According to the table below
know
The ring with a circumference of 65mm corresponds to the Hong Kong version number 23 and a diameter of 20mm.
US Ring Size Comparison Table
According to the table below
know
The ring with a circumference of 65mm corresponds to a US size of around 12 and a diameter of 21.4mm.
European Ring Size Comparison Table
According to the table below
know
The ring with a circumference of 65mm corresponds to the European size 65, with a diameter of 20.69mm.
