# Area

The **Area** function calculates the area of a geography polygon, in specified units.

When you apply the **Area** function to geography points or geography lines, it returns 0.

### Syntax

```
Area(units, polygon)
```

The function arguments are:

<table><thead><tr><th width="258"></th><th></th></tr></thead><tbody><tr><td>units</td><td><p>Required</p><p>The unit of measurement for the areaValid values are <code>"square_kilometers"</code>, <code>"square_meters"</code>, and <code>"square_miles"</code></p></td></tr><tr><td>geog1</td><td><p>Required</p><p>The object for which we calculate the areaMust be in valid Geography polygon format.To work from known latitude and longitude values, use the <a data-mention href="makepoint">makepoint</a> or <a data-mention href="makeline">makeline</a> functions.</p></td></tr></tbody></table>

### Examples

```
Area("square_kilometers", [Coordinates])
```

```
Area("square_meters", [Coordinates])
```

```
Area("square_miles", [Coordinates])
```

The **Area** function returns the following values for the **Coordinates** column values that define a polygon, when specifying area in square kilometers, square meters, or square miles:

<figure><img src="https://files.readme.io/afb5234-function-area-example.png" alt=""><figcaption></figcaption></figure>