---
title: capacity
framework: swift
role: symbol
role_heading: Instance Property
path: swift/set/capacity
---

# capacity

The total number of elements that the set can contain without allocating new storage.

## Declaration

```swift
var capacity: Int { get }
```

## See Also

### Inspecting a Set

- [isEmpty](swift/set/isempty.md)
- [count](swift/set/count.md)