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PROJ datum grids

geospatial mapping


Horizontal and vertical adjustment datasets for coordinate transformation to be used by PROJ 7 or later. PROJ is a generic coordinate transformation software that transforms geospatial coordinates from one coordinate reference system (CRS) to another. This includes cartographic projections as well as geodetic transformations.

Update Frequency

New grids are added when made available


Per file. Under an Open Source Definition compliant license. Consult the READMEs or look at the Copyright TIFF tag of each file.


Managed By


See all datasets managed by PROJ.


How to Cite

PROJ datum grids was accessed on DATE from

Resources on AWS

  • Description
    Horizontal and vertical adjustment datasets
    Resource type
    CloudFront Distribution
    AWS Region

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