Nutrition facts per 100 g

Energy30 kcal
Protein0.6 g
Carbohydrates8 g
– of which sugars6.2 g
Fat0.2 g
– of which saturates0 g
Fibre0.4 g
Salt0 g

Vitamins and minerals (100 g)

Potassium112 mg
Vitamin C8 mg

Calories per serving

ServingWeightkcalProtein
1 serving (150 g)150 g45 kcal0.9 g
100 g100 g30 kcal0.6 g

Where does the energy come from?

  • 7% Protein
  • 88% Carbohydrates
  • 5% Fat

About 7% of the energy comes from protein, 88% from carbohydrates and 5% from fat.

The energy density is low: even a large portion of watermelon has few calories, so it works well for keeping you full.

Frequently asked questions

How many calories are in 100 g of watermelon?

100 g of watermelon has 30 kcal. For example, 1 serving (150 g) has about 45 kcal.

How much protein is in 100 g of watermelon?

100 g contains 0.6 g of protein, which is about 7% of the energy.

Is watermelon good for weight loss?

The energy density is low: even a large portion of watermelon has few calories, so it works well for keeping you full. What matters most is your total daily energy: log the portion in the food diary and you will see right away how it fits your calorie target.

What is RestinCal?

RestinCal is a free food diary and calorie counter made in Finland. Its maker lost almost 40 kilos by logging his meals, and the service is built for the same everyday use:

How to count calories: a beginner's guide
Data source and accuracy (2026) The nutrition values come from the RestinCal food database and are 2026 data. They are average estimates and may contain errors: composition varies by brand, cooking method and harvest. Check the package label when needed. Report an error · Updated 3 October 2026
Note: This page is general information, not nutrition advice. If you have a medical condition or a special diet, talk to a dietitian or a doctor.