To help compare different orders of magnitude this page lists some items with lengths between 10-6 and 10-5 m (between 1 and 10 micrometres, or µm). Distances shorter than 1 µm
- 1 µm is equal to
- the side of square of area 10-12 m²,
- edge of cube of volume 1 fL.
- the limit of resolution for conventional Photolithography techniques.
- 1.55 µm — wavelength of light used in optical fibre
- 3-4 µm — size of a typical yeast cell
- 6 µm — anthrax spore
- 6-8 µm — diameter of a human red blood cell
- 7 µm — diameter of the nucleus of typical eukaryotic cell
- 7 µm — width of strand of spider web [1]
- 1-10 µm — diameter of typical bacterium
- about 10 µm — size of a fog, mist or cloud water droplet


