# @turf/area

# area

Takes one or more features and returns their area in square meters.

**Parameters**

-   `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects)<any>)** input GeoJSON feature(s)

**Examples**

```javascript
var polygon = {
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [125, -15],
        [113, -22],
        [117, -37],
        [130, -33],
        [148, -39],
        [154, -27],
        [144, -15],
        [125, -15]
      ]
    ]
  }
}
var area = turf.area(polygon);
//=area => square meters
//=polygon
```

Returns **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** area in square meters

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---

This module is part of the [Turfjs project](http://turfjs.org/), an open source
module collection dedicated to geographic algorithms. It is maintained in the
[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
PRs and issues.

### Installation

Install this module individually:

```sh
$ npm install @turf/area
```

Or install the Turf module that includes it as a function:

```sh
$ npm install @turf/turf
```