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Ring sizer

Diameter in mm

Ring size (wide in mm)

Ring size Europe (mm)

Ring size US

16 50 16 5.5
16.5 52 16.5 6
17 53 17 6.5
17.5 55 17.5 7
18 56 18 8
18.5 58 18.5 8.5
19 59 19 9
19.5 61 19.5 9.5
20 62 20 10
20.5 64 20.5 10.5
21 66 21 11


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