---
title: radius
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vncircle/radius
---

# radius

The circle’s radius.

## Declaration

```swift
var radius: Double { get }
```

## See Also

### Inspecting a Circle

- [center](vision/vncircle/center.md)
- [diameter](vision/vncircle/diameter.md)
- [contains(_:)](vision/vncircle/contains(_:).md)
- [contains(_:inCircumferentialRingOfWidth:)](vision/vncircle/contains(_:incircumferentialringofwidth:).md)