450 calories. Running 10 km can consume 400 to 700 calories, and a hamburger has to run 10 km, so the KFC Altman burger has 450 calories. Hamburg is the main food in modern western-style fast food. Because of its convenience, delicious taste and comprehensive nutrition, it has become one of the convenient staple foods that sell well all over the world. However, hamburgers are high in calories and contain a lot of fat, which is not suitable for people who lose weight or people with high blood pressure and hyperlipidemia to eat too much.