Package proj

Cartographic projection software (PROJ.4)

https://proj4.org

Proj and invproj perform respective forward and inverse transformation of
cartographic data to or from cartesian data with a wide range of selectable
projection functions.

General Commands
Command Description
cct Coordinate Conversion and Transformation
cs2cs Cartographic coordinate system filter
geod Geodesic computations
gie The Geospatial Integrity Investigation Environment
proj Cartographic projection filter