In addition to the distance, you also need to input your own weight, which can play a certain reference role. The premise is that don't be lazy and lie to yourself when running seriously. The calories consumed are total, not all from fat decomposition. Generally speaking, jogging (heart rate reaches about 60% of the maximum heart rate) has 1 calorie from fat decomposition, and strenuous exercise (reaches about 80% of the maximum heart rate) has 1 calorie. Moreover, it is generally believed that 60% heart rate reaches 15 minutes before fat is decomposed.
Hope to adopt