After half an hour, it depends on whether you go for a brisk walk or a walk. Generally speaking, walking for more than half an hour will achieve the purpose of burning fat, while walking for at least one and a half hours will achieve the purpose of burning fat. In addition, skipping rope can also make you lose weight. Generally, I dance for 30 minutes and give myself 1500. Pay attention to rubbing the leg muscles after exercise and relax. I wish you success in slimming.