The key point of running to lose weight is that your heart rate must reach 60%-70% of your maximum heart rate. (The simple algorithm of maximum heart rate is 220- age) Only reaching this range is the most effective stage to lose weight. Therefore, people who generally run to lose weight must run for more than 30 minutes. The first 30 minutes is to consume glycogen in the body and increase the heart rate. After 30 minutes, your heart rate rises, which is the period when you really start to lose weight. And pay attention when running. You can't stop halfway. Even if you are too tired to run, you can't stop when you slow down, otherwise all your efforts will be in vain. So there is no standard running speed to lose weight, and everyone's is different. Just reach your weight loss range.