Tabel de marimi inele

European Circumferința Diametru US
48 48 15.3 4.5
50 50 16 5
51 51 16.2 5.5
52 52 16.5 6
53 53 16.9 6.5
54 54 17.2 7
55 55 17.5 7.25
56 56 17.8 7.5
57 57 18.1 8
58 58 18.5 8.5
59 59 18.8 8.75
60 60 19 9