Coordinate Reference System Converter

Search supported coordinate systems by name or EPSG identifier and transform one coordinate with a transparent result summary.

Transforms run in your browser. The basemap provider receives tile requests for the visible map area.

Transformation uses the bundled proj4js definitions. No authoritative accuracy metadata or datum grids are available here.

How coordinate transformation works

The app converts through the source and target projection definitions bundled with the application. Datum changes may require parameters or grids that are not available; this page does not claim unsupported accuracy.