All Foods
Fruits
Watermelon
30 kcal per 100g
Nutrition Facts
Serving size: 100g
Calories30
per serving
Total Fat0.2g
Total Carbohydrate7.6g
Dietary Fiber0.4g
Total Sugars6.2g
Protein0.6g
Sodium1mg
Health Info
Watermelon is 92% water, making it ideal for hydration on hot days. It is a leading dietary source of lycopene — an antioxidant linked to heart health and lower oxidative stress — and provides citrulline, an amino acid that supports blood-flow regulation.
Macros per 100g
30kcal
Calories
0.6g
Protein
7.6g
Carbs
0.2g
Fat
Values per 100 g are based on recognised nutrition reference data. Last reviewed: May 2026. View sources
Track Watermelon in Kairo
Just photograph it. Kairo's AI reads the portion and the nutrition — three seconds later the calories and macros are in your log, no typing.
Get Kairo on the App StoreMore from Kairo: Best AI calorie tracker · Cal AI alternative
Frequently Asked Questions
- How many calories are in Watermelon?
- Watermelon has 30 kcal per 100 g. A typical 152 g serving contains about 46 kcal.
- How much protein is in Watermelon?
- Watermelon provides 0.6 g of protein per 100 g.
- How many carbs are in Watermelon?
- Watermelon contains 7.6 g of carbohydrates per 100 g, of which 6.2 g is sugar.
- How much fat is in Watermelon?
- Watermelon contains 0.2 g of fat per 100 g. It also provides 0.4 g of fiber per 100 g.
- Is Watermelon good for weight loss?
- With only 30 kcal per 100 g, Watermelon is low in calories and fits easily into a weight-loss diet.