---
title: blocksAllocated
framework: system
role: symbol
role_heading: Instance Property
path: system/stat/blocksallocated
---

# blocksAllocated

Number of 512-byte blocks allocated

## Declaration

```swift
var blocksAllocated: Int64 { get set }
```

## Discussion

Discussion The semantics of this property are tied to the underlying C st_blocks field, which can have file-system–dependent behavior. The corresponding C property is st_blocks.