---
title: stiffness
framework: swiftui
role: symbol
role_heading: Instance Property
path: swiftui/spring/stiffness
---

# stiffness

The spring stiffness coefficient.

## Declaration

```swift
var stiffness: Double { get }
```

## Discussion

Discussion Increasing the stiffness reduces the number of oscillations and will reduce the settling duration. Decreasing the stiffness increases the number of oscillations and will increase the settling duration.

## See Also

### Getting spring characteristics

- [bounce](swiftui/spring/bounce.md)
- [damping](swiftui/spring/damping.md)
- [dampingRatio](swiftui/spring/dampingratio.md)
- [duration](swiftui/spring/duration.md)
- [mass](swiftui/spring/mass.md)
- [response](swiftui/spring/response.md)
- [settlingDuration](swiftui/spring/settlingduration.md)