> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/linestring-properties/glength.md).

# GLENGTH

## Syntax

```bnf
GLength(ls)
```

## Description

Returns as a double-precision number the length of the [LineString](/docs/server/reference/sql-statements/geometry-constructors/geometry-constructors/linestring.md) value *`ls`* in its associated spatial reference.

## Examples

```sql
SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT GLength(GeomFromText(@ls));
+----------------------------+
| GLength(GeomFromText(@ls)) |
+----------------------------+
|           2.82842712474619 |
+----------------------------+
```

## See Also

* [ST\_LENGTH()](/docs/server/reference/sql-statements/geometry-constructors/geometry-relations/st_length.md) is the OpenGIS equivalent.

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

{% @marketo/form formId="4316" %}