100g milkshake has about 120 calories. The basic ingredients of milkshake are sugar and water. The standard calorie of 100g milk is 54 calories. If other ingredients and sugar in milkshake are included, the calorie of 100g milkshake is basically around 120 calories. Milk shake, English. Milkshakes were first born in the United States, and there are mainly two types: "machine milkshake" and "manual milkshake". Traditional milkshakes are hand-cranked and are usually sold in fast food restaurants and cold food shops. The milkshakes in the shop are now sold, and customers have bought them now. In fast food restaurants, most of them use large floor-standing milkshakes, which generally sell vanilla and strawberry chocolate flavors.