Template:Coord-doc-dim

The  parameter defines the diameter of a viewing circle centered on the coordinate. While the default unit of measurement is metres, the  suffix may be appended to indicate kilometres.

GeoHack uses  to select a map scale such that the viewing circle appears roughly 10 cm in diameter on a 72 dpi computer monitor. If no,  , or   parameters are provided, GeoHack uses its default viewing circle of 30 km.