---
title: "convert(_:from:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uiview/convert(_:from:)-7irzk"
---

# convert(_:from:)

Converts a rectangle from the coordinate system of another view to that of the receiver.

## Declaration

```swift
func convert(_ rect: CGRect, from view: UIView?) -> CGRect
```

## Parameters

- `rect`: A rectangle specified in the local coordinate system (bounds) of view.
- `view`: The view with rect in its coordinate system. If view is nil, this method instead converts from window base coordinates. Otherwise, both view and the receiver must belong to the same doc://com.apple.uikit/documentation/UIKit/UIWindow object.

## Return Value

Return Value The converted rectangle.

## See Also

### Converting between view coordinate systems

- [convert(_:to:)](uikit/uiview/convert(_:to:)-1xizt.md)
- [convert(_:from:)](uikit/uiview/convert(_:from:)-8neo1.md)
- [convert(_:to:)](uikit/uiview/convert(_:to:)-2kf3d.md)