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USDA Nutrition Facts (varies by size, 100g base)

Calories & Macros in Watermelon

Highly hydrating fruit perfect for summer refreshment. Whether your goal is keto, weight loss, or bodybuilding, here is the full nutritional breakdown you need to hit your macronutrient goals.

💡 Serving Size Guide

A standard serving of 1 cup diced weighs approximately 152g.
That means one serving contains 46 calories, 0.9g of protein, and 11.6g of carbs.

30 Calories per 100g
0.6g Protein
7.6g Carbs
0.2g Fat

Calories in any amount of Watermelon

Weigh your portion and type it in. Values scale from the 100g figures above.

46 kcal · 0.9g protein · 11.6g carbs · 0.3g fat

Watermelon calories and macros by amount
AmountCaloriesProteinCarbsFat
1 oz9 kcal0.2g2.2g0.1g
50 g15 kcal0.3g3.8g0.1g
100 g30 kcal0.6g7.6g0.2g
1 serving: 1 cup diced (152 g)46 kcal0.9g11.6g0.3g
150 g45 kcal0.9g11.4g0.3g
200 g60 kcal1.2g15.2g0.4g
250 g75 kcal1.5g19g0.5g
300 g90 kcal1.8g22.8g0.6g
500 g150 kcal3g38g1g
1 lb136 kcal2.7g34.5g0.9g

Watermelon Micronutrients (100g)

  • Dietary Fiber 0.4 g
  • Total Sugars 6.2 g
  • Net Carbs (Total Carbs - Fiber) 7.2 g

Frequently Asked Questions

Is Watermelon good for weight loss?

With 30 calories per 100g, Watermelon can absolutely be part of a healthy diet. Because it contains 0.4g of dietary fiber and 0.6g of protein, it helps regulate satiety. Weight loss ultimately depends on your overall daily caloric deficit (TDEE).

Can I eat Watermelon on a Keto Diet?

The ketogenic diet requires you to monitor your Net Carbs. A 100g serving of Watermelon has 7.2g of net carbs (7.6g total minus 0.4g fiber). This makes it highly compatible with low-carb and keto diets.

Does Watermelon have high protein?

Providing 0.6g of protein per 100g, Watermelon is lower in protein. You may want to pair it with higher-protein foods to hit your macro targets.

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