---
title: longitudeDelta
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkcoordinatespan/longitudedelta
---

# longitudeDelta

The amount of east-to-west distance (measured in degrees) to display for the map region.

## Declaration

```swift
var longitudeDelta: CLLocationDegrees
```

## Discussion

Discussion The number of kilometers spanned by a longitude range varies based on the current latitude. For example, one degree of longitude spans a distance of approximately 111 kilometers (69 miles) at the equator but shrinks to 0 kilometers at the poles.

## See Also

### Getting the span coordinates

- [latitudeDelta](mapkit/mkcoordinatespan/latitudedelta.md)