Below are the calories in a watermelon. Watermelon is a great fruit to eat for weight loss. It is low in saturated fat, total fat and cholesterol. It contains 90% water by weight. However as it contains natural sugars make sure you limit yourself to a couple of slices per day only.
|  
 Food  | 
 
 Calories (cal)  | 
 
 Total Fats (g)  | 
 
 Carbs (g)  | 
 
 Protein (g)  | 
 
 Per  | 
|---|---|---|---|---|---|
Watermelon  | 
 
 80 calories  | 
 
 0  | 
 
 21  | 
 
 0  | 
 
 Per slice/piece* (~300grams)  | 
Whole Watermelon  | 
  1209 calories  | 
  0  | 
  317  | 
  0  | 
  10lb  | 
Watermelon Juice  | 
  28 calories  | 
  0  | 
  7  | 
  0  | 
  1 cup (100 grams)  | 
Watermelon Cubes/Diced  | 
  80 calories  | 
  0  | 
  21  | 
  0  | 
  280 grams  | 
* includes watermelon crust