Arithmetic Density: Arithmetic density is calculated by dividing the total population of an area by its total land area. It provides a general measure of population distribution.
Physiological Density: Physiological density measures the number of people per unit of arable (farmable) land. It helps understand the pressure on agricultural resources.
Urban Density: Urban density refers to how compacted or crowded urban areas, such as cities, are in terms of their population and built-up environment.