---
title: isInfinite
framework: swift
role: symbol
role_heading: Instance Property
path: swift/float/isinfinite
---

# isInfinite

A Boolean value indicating whether the instance is infinite.

## Declaration

```swift
var isInfinite: Bool { get }
```

## Discussion

Discussion For NaN, both isFinite and isInfinite are false.

## See Also

### Querying a Float’s State

- [isZero](swift/float/iszero.md)
- [isFinite](swift/float/isfinite.md)
- [isNaN](swift/float/isnan.md)
- [isSignalingNaN](swift/float/issignalingnan.md)
- [isNormal](swift/float/isnormal.md)
- [isSubnormal](swift/float/issubnormal.md)
- [isCanonical](swift/float/iscanonical.md)
- [floatingPointClass](swift/float/floatingpointclass.md)