they are measured in AU
Long distances are measured in AU in Eve Online. For short distances, it is measured in KM.
Usually such distances are measured either in light-years, or in parsecs.
It depends on what you are trying to measure. Long distances usually are measured in miles. Survey distances usually are measured in feet.
Light years
lightyear
nobody
Light Years
distances between cities are usually measured from the central post offices
Millimeters are typically used to measure very small distances, such as the thickness of paper, the diameter of wires, or the size of small electronic components.
The distances of the Earth are typically measured in kilometers (km) or miles (mi). Alternatively, astronomical units (AU), which is the average distance from the Earth to the Sun, can also be used to measure distances within the solar system.
The distance between planets are measured in millions of kilometers while the distance between solar systems are measured in light years while the galxies and the universe are measured in AU (astronautical units)