---
title: tileSize
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mktileoverlay/tilesize
---

# tileSize

The size (in pixels) of your tile images.

## Declaration

```swift
var tileSize: CGSize { get set }
```

## Discussion

Discussion On Retina displays, the system renders images pixel for pixel and doesn’t scale them. This means that if the tile size is 256 x 256 pixels and the scale factor is 2.0, the system renders the image as if it is 128 x 128 points in size. This behavior causes the tile to appear smaller, but preserves the original image data. The default tile size is 256 x 256 pixels.

## See Also

### Accessing the tile attributes

- [isGeometryFlipped](mapkit/mktileoverlay/isgeometryflipped.md)
- [minimumZ](mapkit/mktileoverlay/minimumz.md)
- [maximumZ](mapkit/mktileoverlay/maximumz.md)
- [canReplaceMapContent](mapkit/mktileoverlay/canreplacemapcontent.md)