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ST_AREA

Returns the area of a Polygon or MultiPolygon. The result is a double-precision number measured in the geometry's spatial reference units.

Syntax

ST_Area(poly)
Area(poly)

Description

Returns as a double-precision number the area of the Polygon value poly, as measured in its spatial reference system.

ST_Area() and Area() are synonyms.

Examples

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SET @poly = 'Polygon((0 0,0 3,3 0,0 0),(1 1,1 2,2 1,1 1))';

SELECT Area(GeomFromText(@poly));
+---------------------------+
| Area(GeomFromText(@poly)) |
+---------------------------+
|                         4 |
+---------------------------+