Meters above sea level


July 6, 2022

Meters above sea level (m a.s.l.)[1] is an altitude measurement standard belonging to the metric system whose function is to describe the elevation of a certain place on planet Earth with respect to the average sea level in that place. In Spanish, the abbreviation of m s is normative. n. m.[2]​


The meter above sea level is a standard measurement of the elevation or altitude above: a geographical location, whether it be a town, mountain, or some other formation; the elevation of a building or other structure; the height reached by an airplane or any other flying object.


The elevation in meters above sea level of any location, object or point can be calculated in different ways. The most common include: a global positioning system (GPS), which triangulates your location with references on various satellites; an altimeter, which measures atmospheric pressure, which decreases as altitude increases; a topographic map or digital elevation model, where the elevations have been determined through aerial photography or surveying.

See also

Altitude Annex:Land below sea level