1 pulg. = 2.540 cm

100 cm = 1 m

1 micra = 10^-6 m = 10^-4 cm = 10^-3 mm, µm (micrometro)

1 Å (angstrom) = 10^-10­ m = 10^-4 µm

1 milla = 5280 pies

1 m = 3.2808 pies = 39.37 pulg.