---
title: lowerBound
framework: swift
role: symbol
role_heading: Instance Property
path: swift/range/lowerbound
---

# lowerBound

The range’s lower bound.

## Declaration

```swift
let lowerBound: Bound
```

## Discussion

Discussion In an empty range, lowerBound is equal to upperBound.

## See Also

### Inspecting a Range

- [isEmpty](swift/range/isempty.md)
- [upperBound](swift/range/upperbound.md)