Proj4 Coordinate Converter
Transform a coordinate using EPSG codes or complete Proj4 definitions for custom and regional coordinate systems.
Input
Definitions and axis order must be verified by the user; no remote EPSG definition lookup occurs.
Review these warnings
Longitude and latitude coordinates
Map preview
Understanding Proj4 Coordinate Converter
Coordinate systems, order and units
Transform a coordinate using EPSG codes or complete Proj4 definitions for custom and regional coordinate systems.
Proj4 Coordinate Converter depends on knowing how coordinates are expressed. Geographic coordinates commonly use WGS84 longitude and latitude, while projected systems use linear units and a defined datum and projection.
How to verify the coordinates
Definitions and axis order must be verified by the user; no remote EPSG definition lookup occurs.
To verify Proj4 Coordinate Converter, spot-check a known place, confirm axis order and verify the expected unit and CRS. A numerically valid coordinate can still be geographically wrong when those assumptions are incorrect.