---
title: joule()
framework: healthkit
role: symbol
role_heading: Type Method
path: healthkit/hkunit/joule()
---

# joule()

Returns a HealthKit unit for measuring energy in joules.

## Declaration

```swift
class func joule() -> Self
```

## Return Value

Return Value A HealthKit unit for measuring energy in joules.

## See Also

### Constructing energy units

- [jouleUnit(with:)](healthkit/hkunit/jouleunit(with:).md)
- [kilocalorie()](healthkit/hkunit/kilocalorie().md)
- [largeCalorie()](healthkit/hkunit/largecalorie().md)
- [smallCalorie()](healthkit/hkunit/smallcalorie().md)
- [calorie()](healthkit/hkunit/calorie().md)