Datum / CRS Transform (Compact) Datum / CRS Transformation Tool Pick a source & target CRS (datum/projection), enter coordinates, and transform. Source CRS Target CRS Lon/Lat (deg) Easting/Northing Longitude Latitude Easting (X) Northing (Y) Precision 0 0.1 0.01 0.001 0.0001 Transform Swap CRS Clear Output will appear here. Browser version uses proj4js. For NADCON/NTv2/NADCON5 grid‑shift accuracy, run server‑side PROJ.
