Many home treadmills include adjustable slope settings

https://padlet.com/kenseybplh/bookmarks-s0251x5eov8t696s63xn/wish/x5A7arRe1pjXawr6

Lots of home treadmills consist of adjustable incline settings, enabling you to mimic outside surface for more powerful legs and much better exercise variety, whether you're training for hills or burning more calories.