ST_TRANSFORM

Converts a GEOMETRY object from one spatial reference system (SRS) to another. If you just need to change the SRID without changing the coordinates (e.g. if the SRID was incorrect), use ST_SETSRID instead.

Syntax

ST_TRANSFORM(<geometry> [, <from_srid>], <to_srid>)

Arguments

Return Type

Geometry.

Examples

SET GEOMETRY_OUTPUT_FORMAT = 'EWKT'

SELECT ST_TRANSFORM(ST_GEOMFROMWKT('POINT(389866.35 5819003.03)', 32633), 3857) AS transformed_geom

┌───────────────────────────────────────────────┐
│                transformed_geom               │
├───────────────────────────────────────────────┤
│ SRID=3857;POINT(1489140.093766 6892872.19868) │
└───────────────────────────────────────────────┘

SELECT ST_TRANSFORM(ST_GEOMFROMWKT('POINT(4.500212 52.161170)'), 4326, 28992) AS transformed_geom

┌──────────────────────────────────────────────┐
│               transformed_geom               │
├──────────────────────────────────────────────┤
│ SRID=28992;POINT(94308.670475 464038.168827) │
└──────────────────────────────────────────────┘