---
title: geo.stLength() function
description: geo.stLength() returns the spherical length or distance of the specified GIS geometry.
url: https://docs.influxdata.com/flux/v0/stdlib/experimental/geo/stlength/
estimated_tokens: 220
product: Flux
version: v0
publisher: InfluxData
canonical: https://docs.influxdata.com/flux/v0/stdlib/experimental/geo/stlength/
date: '2024-04-08T16:01:02-06:00'
lastmod: '2024-04-08T16:01:02-06:00'
---

* Flux 0.78.0+

InfluxDB support

> [!Important]
> `geo.stLength()` is experimental and [subject to change at any time](/flux/v0/stdlib/experimental/#experimental-packages-are-subject-to-change).

`geo.stLength()` returns the [spherical length or distance](https://mathworld.wolfram.com/SphericalDistance.html)of the specified GIS geometry.

`geo.stLength` is used as a helper function for `geo.ST_Length()`.

##### Function type signature

```js
(geometry: A, units: {distance: string}) => float where A: Record
```

For more information, see [Function type signatures](/flux/v0/function-type-signatures/).

## Parameters

### geometry

(Required)
GIS geometry to test. Can be either point or linestring geometry.
Point geometry will always return `0.0`.

### units

(Required)
Record that defines the unit of measurement for distance.

[geotemporal](/flux/v0/tags/geotemporal/)