Angstrom vs. Nanometer — What's the Difference?

The angstrom (, ; ANG-strəm, ANG-strum) or ångström is a metric unit of length equal to 10−10 m; that is, one ten-billionth (US) of a metre, a hundred-millionth of a centimetre, 0.1 nanometre, or 100 picometres. Its symbol is Å, a letter of the Swedish alphabet.

One billionth (10-9) of a meter.

A unit of length equal to one ten-billionth (10−10) of a meter, used especially to specify radiation wavelengths. Also called angstrom unit.

Alternative spelling of nanometre

(physics) A unit of length equal to 10⁻¹⁰ meters (that is, one ten-billionth of a meter), approximately the size of an atom, and denoted by the symbol Å, used especially to measure the wavelength of electromagnetic radiation or distances between atoms.

A metric unit of length equal to one billionth of a meter

A metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation