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Public-images-osm logo.svg ascent
The ascent to the summit of Slieve Donard - - 1979617.jpg
The accumulated ascent for any kind of non-physical route. Show/edit corresponding data item.
Group: routes
Used on these elements
should not be used on nodesshould not be used on waysshould not be used on areasmay be used on relations
Status: in use

ascent=ascent in m is used to indicate the total accumulated ascent in meters of a route relation. Ascent should not be used on single ways, because it will cause confusion if the way is split up into several parts.

If you want to use another unit=km/m/miles/mph/... use ascent=ascent value plus unit=km/m/miles/mph/... separating the unit from the ascent key. This makes it easier for handling the data.This is not accepted tagging practice and is not widely used. Instead, units are commonly given as part of a value, like maxspeed=30 mph or height=2 m.

See also