Ring Sizing
First, select a ring that fits for the finger.
Next, measure the diameter opening of that ring.
Use the conversion chart below to determine your US/UK/EU ring size.
INTERNAL DIAMETER (MM)
15.3 mm EU 48 | US / CANADA 4.5 | UK / AUS I 1/2
15.9 mm EU 50 | US / CANADA 5 1/4 | UK / AUS K
16.5 mm EU 52 | US / CANADA 6 | UK / AUS L
17.2 mm EU 54 | US / CANADA 7 | UK / AUS N
17.8 mm EU 56 | US / CANADA 7.75 | UK / AUS O 1/2
18.1 mm EU 57 | US / CANADA 8 | UK / AUS P
18.4 mm EU 58 | US / CANADA 8.25 | UK / AUS P 1/2
19.1 mm EU 60 | US / CANADA 9 | UK / AUS R
19.8 mm EU 60 | US / CANADA 10 | UK / AUS T
