How many calories in cherries? A single cherry has 4.9 calories; 0.6 g carbohydrates 1% dietary fat and 1% vitamin C. Water constitute 83% of a cherry. A cup of cherries contain 84.24 calories and 2% fat. Cherries also contain vitamin C, melatonin, bioflavonoid, ellagic acids, perillyl, and anthocyanins that help in reducing the free radicals which attack the healthy cells present in the body. Cherries also increase the metabolic rates and boost up the energy levels. Due to the low fat percentage it is considered as in weight reducing diet.