What units does a map scale have?

A map scale typically has units that correspond to the real-world measurements it represents, such as inches, centimeters, miles, or kilometers. It can be presented as a ratio (e.g., 1:50,000), indicating that one unit on the map equals 50,000 of the same units in reality. Alternatively, scales can be depicted as a graphic scale or bar scale, showing the relationship visually. Overall, the units used depend on the map's purpose and the region it covers.