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

# size

Total size, in bytes

## Declaration

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

## Discussion

Discussion The semantics of this property are tied to the underlying C st_size field, which can have file-system–dependent behavior. For example, this property can return different values for a file’s data fork and resource fork, and some file systems report logical size rather than actual disk usage for compressed or cloned files. The corresponding C property is st_size.