Units for measuring distance

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These units are used in everyday and/or scientific situations for measuring the distance (d) between two or more certain points.

  • Ångström (å, 1/10 000 000 000 of a meter)
  • Microns (μm, 1/1 000 of a millimeter or 1/1 000 000 of a meter)
  • Millimeters (mm, 1/10 of a centimeter or 1/1 000 of a meter)
  • Centimeters (cm, 1/100th of a meter)
  • Inches (in, 2,4 centimeters)
  • Feet (singular foot, ft, ~30 inches)
  • Meters (m, 1/10 000 000th of the distance between the Equator and the North Pole)
  • Kilometers (km, 1 000 meters)
  • Miles (mi, 1.609 kilometers)
  • Solar diameters (D, 1 392 400 kilometers) or solar radii (R, 696 200 kilometers)
  • Astronomical unit (AU, 149 670 000 kilometers)
  • Light year (ly, 9 470 000 000 000 kilometers)