Kate from the fun city of Frankfort Kentucky sent our staff the following question. She asked us how many calories are in fresh carrot juice? Generally speaking there are roughly 90 calories to every cup of carrot juice, or 90 calories to every 8 ounces. That number can obviously fluctuate a lot or a little depending on the carrot juice itself, for example how much water to fiber the juice contains. Many people are surprised to hear that the juice contains so many calories in just a little serving size. The reason that carrot juice is so calorie dense is because it contains a lot of natural sugar, in fact carrot juice is higher in natural sugar than most other juices. So if you are dieting or trying to cut down on your total sugar intake, then carrot juice might not be the best fresh juice drink for you. It is however extremely rich in vitamins and minerals, and even just a cup a day of the juice can yield huge health benefits. For more questions and answers please browse our website.