View the nutrition for Watermelon Juice, including calories, carbs, fat, protein, cholesterol, and more (Evolution). Want to use it in a meal plan? Head to the diet . Calories in Homemade Watermelon Juice. Find nutrition facts for Homemade Watermelon Juice and over other foods in watermelonpoint.com's food. Food Nutrition Information for Watermelon juice, How many calories in Watermelon juice. How many carbs in Watermelon juice. May 27, Watermelon is a thirst-quenching fruit. High in vitamins A, C and fiber, it is good for you. Find out the nutrition and calorie count of watermelon. Calories in Watermelon Juice based on the calories, fat, protein, carbs and other nutrition information submitted for Watermelon Juice. Nutrition facts and Information for Watermelon, raw.