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Seedless Watermelon Calories and Nutrition Facts

Seedless Watermelon has 19 calories per 100 g, with 0.5 g protein, 4.2 g carbs and 0.1 g fat. Official USDA analytical record: Watermelon, seedless, rind only, raw (FDC ID: 2747676).

⚡ Quick Nutrition Answer

A 100g serving of seedless watermelon contains 19 calories, 0.5g protein, 4.2g total carbs (2.7g net carbs), and 0.1g fat.

Energy density

0.19 kcal/g

very low

Protein / 100 kcal

2.6 g

satiety per calorie

Net carbs / 100 g

2.7 g

carbs minus fibre

100 kcal portion

526 g

≈ 18.6 oz

✓ Low calorie✓ Low fat✓ Low saturated fat✓ Sodium free✓ Keto-friendly
Serving size
How many?

= 100 g total

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Calories
19
in 100 g · 19 kcal per 100 g
Carbs4.2 g · 85%
Protein0.5 g · 10%
Fat0.1 g · 5%
Sugars
2.2g
Fibre
1.5g
Saturated fat
0g
Sodium
4mg

Watermelon, seedless, rind only, raw nutrition facts

The table below shows the complete nutritional profile for watermelon, seedless, rind only, raw per 100 g (the laboratory analytical standard), alongside the share of the FDA Daily Value each nutrient covers. Most of its calories come from carbohydrate, and it is relatively low in calories.

NutrientPer 100 g% DV*
Calories19 kcal
Protein0.5 g1%
Carbohydrate4.2 g2%
Fat0.1 g0%
Sugars2.2 g
Fibre1.5 g5%
Saturated fat0 g0%
Sodium4 mg0%

*Percent Daily Value per 100 g, against the FDA reference intakes for adults and children 4+ years (50 g protein, 275 g carbohydrate, 28 g fibre, 78 g fat, 20 g saturated fat, 2300 mg sodium). Total sugars has no Daily Value — the 50 g reference applies to added sugars only, and USDA reports total sugars here.

Seedless Watermelon calories by weight: ounces, pounds and grams

USDA publishes this food per 100 g, so here is the same profile converted to the weights a kitchen scale and a US recipe actually use. At 0.19 kcal per gram (very low energy density), you can eat a large volume of this for very few calories, which makes it useful for filling out a meal in a deficit.

AmountCaloriesProteinCarbsFat
1 oz (28 g)5 kcal0.1 g1.2 g0 g
100 g (3.5 oz)19 kcal0.5 g4.2 g0.1 g
4 oz (113 g)22 kcal0.6 g4.8 g0.1 g
8 oz / ½ lb (227 g)43 kcal1.1 g9.5 g0.2 g
1 lb (454 g)86 kcal2.3 g19.1 g0.5 g
🏛️ Official USDA FoodData Central CitationFDC ID: 2747676

Data sourced from USDA FoodData Central Foundation Foods dataset (public domain, CC0). Laboratory food profile and analytical measurements verified under USDA FDC ID 2747676.

View raw USDA laboratory entry →

How seedless watermelon compares to other fruits

Against the 44 fruits in this database, seedless watermelon ranks 1st lowest in calories and 32nd highest in protein. The category averages 72 kcal per 100 g, so this one is 74% below it. The lightest option in the category is watermelon, seedless, rind only, raw at 19 kcal per 100 g, and the protein leader is figs, dried, uncooked at 3.3 g per 100 g.

Fruits (by calories)CaloriesProteinkcal/g
🍉 Watermelon, seedless, rind only, raw (this page)19 kcal0.5 g0.19
🧃 Cranberry juice, not fortified, from concentrate, shelf stable32 kcal0 g0.32
🍈 Melons, cantaloupe, raw34 kcal0.8 g0.34
🍓 Strawberries, raw36 kcal0.6 g0.36
🍇 Grapefruit juice, white, canned or bottled, unsweetened37 kcal0.6 g0.37

Portion planning with seedless watermelon

  • 100 calories comes to about 526 g (18.6 oz).
  • Fibre density is 7.9 g per 100 calories, covering 5% of the daily fibre target per 100 g.
  • Macro split by calories: 85% carbs, 10% protein, 5% fat.

Nutrient screening detail

The badges near the top of this page come from screening the per-100 g values against the FDA nutrient-content thresholds in 21 CFR 101.54–101.62. The regulations define those claims per reference serving rather than per 100 g, so treat these as a like-for-like comparison between foods, not as a statement about a product label:

  • Low calorie — 19 kcal per 100 g (≤ 40)
  • Low fat — 0.1 g per 100 g (≤ 3 g)
  • Low saturated fat — 0 g per 100 g (≤ 1 g)
  • Sodium free — 4 mg per 100 g (< 5 mg)
  • Keto-friendly — 2.7 g net carbs per 100 g (≤ 5 g)

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Seedless Watermelon FAQ & Nutrition Questions

How many calories and carbs are in 100 g of seedless watermelon?

One serving of 100 g provides 19 calories, 4.2 g total carbs (2.7 g net carbs), 0.5 g protein, and 0.1 g fat.

How many calories are in 100 g of seedless watermelon?

Seedless Watermelon contains 19 calories per 100 g, with 0.5 g protein, 4.2 g carbohydrate, and 0.1 g fat. Use the interactive calculator above to scale to any custom amount.

What is the USDA FoodData Central (FDC) ID for seedless watermelon?

The official USDA FoodData Central ID for "Watermelon, seedless, rind only, raw" is FDC ID: 2747676. You can view the verified laboratory analytical record on the USDA FoodData Central Database.

What is the macronutrient breakdown of seedless watermelon?

By calories, seedless watermelon is approximately 85% carbohydrates, 10% protein, and 5% fat.

How many calories are in an ounce of seedless watermelon?

One ounce (28 g) of seedless watermelon has 5 calories, with 0.1 g protein, 1.2 g carbs and 0 g fat. Four ounces (113 g) comes to 22 calories, and a full pound (454 g) to 86 calories.

How much seedless watermelon is 100 calories?

About 526 g of seedless watermelon supplies 100 calories, because it carries 0.19 kcal per gram (very low energy density). You can eat a large volume of this for very few calories, which makes it useful for filling out a meal in a deficit.

How many net carbs are in seedless watermelon?

Per 100 g, seedless watermelon has 2.7 g net carbs — 4.2 g total carbohydrate minus 1.5 g fibre.

Is seedless watermelon high or low in calories for a fruit?

Seedless Watermelon sits 74% below the fruits average of 72 kcal per 100 g, ranking 1st lowest of 44 in this category.

Is this nutrition data free to use?

Yes. The data is sourced directly from USDA FoodData Central (CC0 public domain). Viewing and scaling portions here is 100% free with no sign-up — and you can log this food free in our online food diary.