Before I answer this question, let me try to paint the picture of what it takes to lose weight.
Most, if not all modern treadmills, such as the ones listed by at https://www.homefitnessarena.com, come with the option of increasing (uphill effect) and decreasing (downhill effect) the incline. Irrespective of whether you're a seasoned athlete or a beginner starting to work out, this is a feature you should definitely try.
The option of an incline treadmill comes in handy in building strength and endurance. For a beginner, you can either walk or jog at a low speed with a slight incline of about 5% at a moderate speed of about 8Kph (kilometers per hour). Presuming you've been jogging on the treadmill without any incline setting engaged, you'll find yourself losing more calories by using this feature while working out for the same duration you're used to.
On the other hand, if you are really fit, you can set the incline to about 10% and a speed of more than 12Kph.
Treadmill incline benefits
The power to walk, jog or run is mainly generated from the glutes and hamstrings. Therefore, increasing a treadmill's workout challenge by increasing the incline, glutes and hamstring muscles are worked more. This results in a toned butt and hips. Another reason why an incline on treadmill for glutes is advisable is due to the fact that it leads to burning of the excess fat stored around the butt. This definitely leads to a toned and better shaped behind.
Also considering that you might be living in an area that is mainly level and hence can't jog uphill, then the incline treadmill feature would be ideal. In the same breath, even during unfriendly weather conditions such as when it's snowing or when it's extremely hot, you can still workout from the comfort of your home gym.
Another advantage of using this feature is the fact that you do not have to go downhill during the work out. This is unlike jogging outdoors whereby if you jog uphill, you will have to jog, or walk if too tired, downhill. Now, downhill jogging is not really challenging and will not be adding value to your workout routine but it can actually cause strain on your knee joints even leading to an injury.
Planning a workout by calories to lose on an incline treadmill
Sometimes it matters to be psychologically set on how long you will work out on a treadmill. This requires knowing what settings to use on a treadmill in order to lose the desired calories. To do this you can visit here in order to determine the settings and duration you need to use to achieve your goals.
For instance, if you weight 75kgs, you jog at an incline of +5% at a speed of 10Kph for 20minutes, you'll lose about 330 Kcal.