Unitati de masura

Unitate Valoare
1 Mila marina (Mm) = 1852 m
1 Cablu = 1/10 Mm = 185 m
1 Brat (fathom) = 1/1000 Mm = 2 yarzi = 6 picioare = 72 toli = 1,828.767 m (aprox.1,83 m)
1 Picior (foot) = 12 toli (inch) = 0,3048 m
1 Yard = 3 picioare = 0. 914399 m (aprox. 0.91m)
1 Inch sau tol = 1/12 dintr-un picior = 2,539954 cm (aprox. 2,54 cm)
1 Nod (Nd) = 1 Mm/h
1 Mila terestra = 1760 Yard = 1609,344 m