1 m= (a)   mm

1 cm= (a)   mm

1km= (a)   m

1 m= (a)   pies

1 pie= (a)   cm

1 pie= (a)   pulgadas

1 pulgada= (a)   cm

1 milla= (a)   km

1 milla= (a)   m

1 lb= (a)   g

1 kg= (a)   lb

1 galón= (a)   lts

1 kgf= (a)   N

1 ton= (a)   kg