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# ST_MinimumBoundingRadius

Returns a struct containing the center point and radius of the smallest circle that contains a geometry.

<img src="https://mintcdn.com/wherobots/wLm_IRUSNlHZTHJP/images/sql-functions/ST_MinimumBoundingRadius/ST_MinimumBoundingRadius.svg?fit=max&auto=format&n=wLm_IRUSNlHZTHJP&q=85&s=f993f40d854ea0275449139e65e85a3a" alt="ST_MinimumBoundingRadius" width="500" height="300" data-path="images/sql-functions/ST_MinimumBoundingRadius/ST_MinimumBoundingRadius.svg" />

## Signatures

```sql theme={"system"}
ST_MinimumBoundingRadius(geom: Geometry)
```

## Parameters

<ParamField body="geom" type="Geometry" required>
  The input geometry.
</ParamField>

## Return type

<ResponseField type="Struct<center: Geometry, radius: Double>">
  A struct containing the result fields.
</ResponseField>

## Example

```sql theme={"system"}
SELECT ST_MinimumBoundingRadius(ST_GeomFromText('POLYGON((1 1,0 0, -1 1, 1 1))'))
```

```
{POINT (0 1), 1.0}
```