Fruit · Nutrition facts

Raw Watermelon

30 calories and 0.6 g of protein per 100 g. Reported fiber: 0.4 g.

USDA SR LegacyPublished Apr 2019

Know what you’re comparing.

Watermelon, raw

Source category: Fruits and Fruit Juices
Nutrition basis: Per 100 g
Source record: USDA FDC 167765
Publication date: Apr 2019

On a 100 g basis, this record has more protein than 33% of 549 other complete fruit profiles.

Compare with another food

The source matters

SR Legacy is USDA’s final historical reference release from 2018. It combines analyses, calculations, and literature. The publication date in FoodData Central is not the date every nutrient was measured.

Read about this dataset

Your portion, your numbers

Amount gUse a portion

46calories

in 154 g

Nutrient	Amount	Daily value
Protein	0.9 g	—
Carbohydrate	11.6 g	4%
Fat	0.2 g	0%
Fiber	0.6 g	2%
Total sugars	9.5 g	—
Sodium	2 mg	0%
Saturated fat	0 g	0%
Potassium	172 mg	4%
Calcium	11 mg	1%
Iron	0.37 mg	2%
Magnesium	15 mg	4%
Vitamin C	12.5 mg	14%
Vitamin D	0 µg	0%

Estimated energy from macros

Protein 7%Carbs 89%Fat 4%

Uses 4 kcal/g for protein and carbohydrate, 9 for fat. Fiber, alcohol, and label rounding can make this differ from reported calories.

Daily values use the FDA adult reference for a 2,000-calorie diet. Your needs may differ. A dash means no reported value or no daily value shown.

Explore a different choice

What else fits your plate?

Explore fruit

Find Compare Same broad food category

This food: 4.1 g protein in 666.7 g. Choices below have more on this basis.

9.4 g protein

Cloudberries, raw (Alaska Native)

USDA SR Legacy · 392.2 g

5.3 g more than your starting foodCompare these foods

8.6 g protein

Rhubarb, raw

USDA SR Legacy · 952.4 g

4.5 g more than your starting foodCompare these foods

8.2 g protein

Goji berries, dried

USDA SR Legacy · 57.3 g

4.1 g more than your starting foodCompare these foods

8.1 g protein

Horned melon (Kiwano)

USDA SR Legacy · 454.5 g

4 g more than your starting foodCompare these foods

8 g protein

Melon, banana (Navajo)

USDA SR Legacy · 952.4 g

3.9 g more than your starting foodCompare these foods

7.9 g protein

Melons, casaba, raw

USDA SR Legacy · 714.3 g

3.9 g more than your starting foodCompare these foods

These are nutrition comparisons, not equivalent ingredients. Check preparation, taste, serving size, and the current package before making a substitution.

Reported variation in the reference data

A food is more than one number.

Where the source reports a minimum and maximum, you can see that range alongside the displayed value.

Nutrient	Displayed value	Reported minimum	Reported maximum	Data points
WaterPer 100 g	91.45 g	90.1 g	92.42 g	14
ProteinPer 100 g	0.61 g	0.4 g	0.84 g	11
Total lipid (fat)Per 100 g	0.15 g	0.05 g	0.27 g	10
AshPer 100 g	0.25 g	0.1 g	0.37 g	11
Fiber, total dietaryPer 100 g	0.4 g	0.4 g	0.7 g	10
Sugars, TotalPer 100 g	6.2 g	5.74 g	6.59 g	6
SucrosePer 100 g	1.21 g	0.11 g	2.87 g	6
GlucosePer 100 g	1.58 g	0.67 g	2.13 g	8

These are source-reported summary fields, not a predicted range for your particular food or a statistical confidence interval.

All 108 reported nutrient values Per 100 g

Nutrient	Amount	USDA identifier
Water	91.45 g	1051
Energy	30 kcal	1008
Energy	127 kj	1062
Protein	0.61 g	1003
Total lipid (fat)	0.15 g	1004
Ash	0.25 g	1007
Carbohydrate, by difference	7.55 g	1005
Fiber, total dietary	0.4 g	1079
Sugars, Total	6.2 g	2000
Sucrose	1.21 g	1010
Glucose	1.58 g	1011
Fructose	3.36 g	1012
Lactose	0 g	1013
Maltose	0.06 g	1014
Galactose	0 g	1075
Starch	0 g	1009
Calcium, Ca	7 mg	1087
Iron, Fe	0.24 mg	1089
Magnesium, Mg	10 mg	1090
Phosphorus, P	11 mg	1091
Potassium, K	112 mg	1092
Sodium, Na	1 mg	1093
Zinc, Zn	0.1 mg	1095
Copper, Cu	0.042 mg	1098
Manganese, Mn	0.038 mg	1101
Selenium, Se	0.4 µg	1103
Fluoride, F	1.5 µg	1099
Vitamin C, total ascorbic acid	8.1 mg	1162
Thiamin	0.033 mg	1165
Riboflavin	0.021 mg	1166
Niacin	0.178 mg	1167
Pantothenic acid	0.221 mg	1170
Vitamin B-6	0.045 mg	1175
Folate, total	3 µg	1177
Folic acid	0 µg	1186
Folate, food	3 µg	1187
Folate, DFE	3 µg	1190
Choline, total	4.1 mg	1180
Betaine	0.3 mg	1198
Vitamin B-12	0 µg	1178
Vitamin B-12, added	0 µg	1246
Vitamin A, RAE	28 µg	1106
Retinol	0 µg	1105
Carotene, beta	303 µg	1107
Carotene, alpha	0 µg	1108
Cryptoxanthin, beta	78 µg	1120
Vitamin A, IU	569 iu	1104
Lycopene	4,532 µg	1122
Lutein + zeaxanthin	8 µg	1123
Vitamin E (alpha-tocopherol)	0.05 mg	1109
Vitamin E, added	0 mg	1242
Tocopherol, beta	0 mg	1125
Tocopherol, gamma	0 mg	1126
Tocopherol, delta	0 mg	1127
Tocotrienol, alpha	0.01 mg	1128
Tocotrienol, beta	0 mg	1129
Tocotrienol, gamma	0 mg	1130
Tocotrienol, delta	0 mg	1131
Vitamin D (D2 + D3), International Units	0 iu	1110
Vitamin D (D2 + D3)	0 µg	1114
Vitamin K (phylloquinone)	0.1 µg	1185
Vitamin K (Dihydrophylloquinone)	0 µg	1184
Fatty acids, total saturated	0.016 g	1258
SFA 4:0	0 g	1259
SFA 6:0	0 g	1260
SFA 8:0	0 g	1261
SFA 10:0	0.001 g	1262
SFA 12:0	0.001 g	1263
SFA 14:0	0 g	1264
SFA 16:0	0.008 g	1265
SFA 18:0	0.006 g	1266
Fatty acids, total monounsaturated	0.037 g	1292
MUFA 16:1	0 g	1275
MUFA 18:1	0.037 g	1268
MUFA 20:1	0 g	1277
MUFA 22:1	0 g	1279
Fatty acids, total polyunsaturated	0.05 g	1293
PUFA 18:2	0.05 g	1269
PUFA 18:3	0 g	1270
PUFA 18:4	0 g	1276
PUFA 20:4	0 g	1271
PUFA 20:5 n-3 (EPA)	0 g	1278
PUFA 22:5 n-3 (DPA)	0 g	1280
PUFA 22:6 n-3 (DHA)	0 g	1272
Fatty acids, total trans	0 g	1257
Cholesterol	0 mg	1253
Phytosterols	2 mg	1283
Tryptophan	0.007 g	1210
Threonine	0.027 g	1211
Isoleucine	0.019 g	1212
Leucine	0.018 g	1213
Lysine	0.062 g	1214
Methionine	0.006 g	1215
Cystine	0.002 g	1216
Phenylalanine	0.015 g	1217
Tyrosine	0.012 g	1218
Valine	0.016 g	1219
Arginine	0.059 g	1220
Histidine	0.006 g	1221
Alanine	0.017 g	1222
Aspartic acid	0.039 g	1223
Glutamic acid	0.063 g	1224
Glycine	0.01 g	1225
Proline	0.024 g	1226
Serine	0.016 g	1227
Alcohol, ethyl	0 g	1018
Caffeine	0 mg	1057
Theobromine	0 mg	1058

Related reference foods.

Explore more records in the same food group. Preparation and ingredients can change the numbers.

Raw Watermelon, Seedless, Rind OnlyUSDA Foundation · Dec 2025