Roche, if you look at the list on your app (where you find this forum, where you can put in your height/weight, send feedback, etc.), you'll see "units" near the bottom of the list (you may have to scroll to see it). If your app is giving you miles, slide the button to the left and it will change to km. Then, even if most or all people are talking in miles, your training program will be in kilometers.