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# area

The area covered by the body.

```
var area: CGFloat { get }
```

## Discussion

This property is used in conjunction with the [`density`](/documentation/SpriteKit/SKPhysicsBody/density) property to calculate the body’s mass.

The value returned for the area is measured in meters: if you need to convert it into points — as used by SpriteKit — multiply the values by 150². The following listing shows how to calculate the area of a box which is ten points square.

```objc
let bodySize = CGSize(width: 10, height: 10)
let physicsBody = SKPhysicsBody(rectangleOf: bodySize)
let areaInPoints = physicsBody.area * pow(150, 2) // areaInPoints = 100
```

---

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