---
title: speedAccuracy
framework: corelocation
role: symbol
role_heading: Instance Property
path: corelocation/cllocation/speedaccuracy
---

# speedAccuracy

The accuracy of the speed value, measured in meters per second.

## Declaration

```swift
var speedAccuracy: CLLocationSpeedAccuracy { get }
```

## Discussion

Discussion When this property contains 0 or a positive number, the value in the speed property is plus or minus the specified number of meters per second. When this property contains a negative number, the value in the speed property is invalid.

## See Also

### Getting speed and course information

- [speed](corelocation/cllocation/speed.md)
- [course](corelocation/cllocation/course.md)
- [courseAccuracy](corelocation/cllocation/courseaccuracy.md)
- [CLLocationSpeed](corelocation/cllocationspeed.md)
- [CLLocationDirection](corelocation/cllocationdirection.md)
- [CLLocationSpeedAccuracy](corelocation/cllocationspeedaccuracy.md)
- [CLLocationDirectionAccuracy](corelocation/cllocationdirectionaccuracy.md)