---
title: utf8CodeUnitCount
framework: swift
role: symbol
role_heading: Instance Property
path: swift/staticstring/utf8codeunitcount
---

# utf8CodeUnitCount

The number of UTF-8 code units (excluding the null terminator).

## Declaration

```swift
var utf8CodeUnitCount: Int { get }
```

## Discussion

Discussion important: Accessing this property when hasPointerRepresentation is false triggers a runtime error.