---
title: speedAccuracy
framework: coremotion
role: symbol
role_heading: Instance Property
path: coremotion/cmodometerdata/speedaccuracy
---

# speedAccuracy

The accuracy of the speed value.

## Declaration

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

## Discussion

Discussion This property measures the accuracy of the speed property. 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 the location accuracy

- [verticalAccuracy](coremotion/cmodometerdata/verticalaccuracy.md)
- [deltaDistanceAccuracy](coremotion/cmodometerdata/deltadistanceaccuracy.md)