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

1 g mol de gas ideal a 0 ºC, 760 mm de Hg = 22.4140 lt = 22414 mm³

1 lb mol de gas ideal a 0 ºC, 760 mm de Hg = 359.05 pie³

1 kg mol