What sort of map are you using? If you're using a civilian road or terrain map, the distance will typically be measured in miles. If you're using a military topographical map, the measurement will be in kilometres.
The meter.
distance
The answer depends on the scale but the SI unit is a metre.
The meter, the SI unit for distance.
light years
Angstroms
mainly meters are being used : symbol (m)
The standard measure for distance is the METRE
The unit that measures the greatest distance is a light-year, which represents the distance that light travels in one year. This unit is frequently used in astronomy to measure vast distances between celestial objects.
Kilometers are a unit of length, used to measure distance.
The best unit to measure the distance to Alabama largely depends on the context. For short distances, such as within a city or state, miles or kilometers are suitable. For longer distances, such as from another state or country, nautical miles may be used, especially in aviation and maritime contexts. Overall, miles is often the most common unit used in the United States.
meter