---
title: longitude
framework: mapkitjs
role: symbol
role_heading: Instance Property
path: mapkitjs/coordinate/longitude
---

# longitude

The longitude, in degrees.

## Declaration

```data
longitude: number;
```

## Discussion

Discussion Measurements are relative to the zero meridian, with positive values extending east of the meridian and negative values extending west of the meridian.

## See Also

### Defining the coordinates

- [latitude](mapkitjs/coordinate/latitude.md)