how do I reset the apple watch from kilojoules to calories?

[iMore Question]

not sure how this happened, but........how do I reset the apple watch from kilojoules to calories?

 

[SwitchBeach]

On the Apple Watch, go to the Workout App.
Select an activity such as Outdoor Run or Outdoor Walk.
Swipe left or right as need to get to an activity that measures in calories or kilojoules.
Hard press on the screen.
Select the desired unit of measure.