---
title: speed
framework: spritekit
role: symbol
role_heading: Instance Property
path: spritekit/skaction/speed
---

# speed

A speed factor that modifies how fast an action runs.

## Declaration

```swift
var speed: CGFloat { get set }
```

## Mentioned in

Getting Started with Actions

## Discussion

Discussion The speed factor adjusts how fast an action’s animation runs. For example, a speed factor of 2.0 means the animation runs twice as fast.

## See Also

### Controlling Action Timing

- [Configuring Action Timing](spritekit/configuring-action-timing.md)
- [duration](spritekit/skaction/duration.md)
- [timingMode](spritekit/skaction/timingmode.md)
- [SKActionTimingMode](spritekit/skactiontimingmode.md)
- [timingFunction](spritekit/skaction/timingfunction.md)
- [SKActionTimingFunction](spritekit/skactiontimingfunction.md)