Calories in Grapefruit, raw
Generic food Raw Fruits
Grapefruit, raw contains 42 kcal per 100 g. A typical serving of 1 cup (180 g) provides about 76 kcal.
Roughly 91% of its calories come from carbohydrates, with 7% from protein and 3% from fat (estimated with general energy factors).
That is close to the median for citrus fruits on FoodFactly (44 kcal per 100 g).
100 g provides 35% of the Daily Value for Vitamin C.
These values are for the raw food. Cooking changes the water content and some nutrients, so cooked versions are listed separately below.
The data comes from the USDA Food and Nutrient Database for Dietary Studies (FNDDS), which calculates values from recipes of the ingredients.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 42 kcal | |
| Total fat C | 0.14 g | 0.2% |
| Saturated fat C | 0.021 g | 0.1% |
| Cholesterol C | 0 mg | 0% |
| Sodium C | 0 mg | 0% |
| Total carbohydrates C | 10.7 g | 4% |
| Dietary fiber C | 1.6 g | 6% |
| Total sugars C | 6.9 g | |
| Protein C | 0.77 g | 2% |
| Vitamin A C | 58 µg | 6% |
| Vitamin C C | 31.2 mg | 35% |
| Vitamin D C | 0 µg | 0% |
| Vitamin E C | 0.13 mg | 0.9% |
| Vitamin K C | 0 µg | 0% |
| Thiamin (B1) C | 0.043 mg | 4% |
| Riboflavin (B2) C | 0.031 mg | 2% |
| Niacin (B3) C | 0.2 mg | 1% |
| Vitamin B6 C | 0.053 mg | 3% |
| Folate (B9) C | 13 µg | 3% |
| Vitamin B12 C | 0 µg | 0% |
| Choline C | 7.7 mg | 1% |
| Calcium C | 22 mg | 2% |
| Iron C | 0.08 mg | 0.4% |
| Magnesium C | 9 mg | 2% |
| Phosphorus C | 18 mg | 1% |
| Potassium C | 135 mg | 3% |
| Zinc C | 0.07 mg | 0.6% |
| Copper C | 0.032 mg | 4% |
| Selenium C | 0.1 µg | 0.2% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 7%
- Carbohydrates 91%
- Fat 3%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein0.77 gabove the median for citrus fruits (median 0.74 g)
- Fiber1.6 gbelow the median for citrus fruits (median 1.7 g)
- Sugars6.9 gin the lowest quarter of citrus fruits (median 8.9 g)
- Saturated fat0.021 gabove the median for citrus fruits (median 0.018 g)
- Sodium0 mgin the lowest quarter of citrus fruits (median 2 mg)
- Protein per 100 kcal1.8 gprotein density, useful for comparing foods with different calorie levels
- Water88.1 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Fats and cholesterol (2)
| Monounsaturated fat C | 0.02 g |
|---|---|
| Polyunsaturated fat C | 0.036 g |
Individual fatty acids (19)
| EPA (omega-3, 20:5 n-3) C | 0 g |
|---|---|
| DHA (omega-3, 22:6 n-3) C | 0 g |
| Linoleic acid (omega-6, 18:2) C | 0.029 g |
| SFA 4:0 C | 0 g |
| SFA 6:0 C | 0 g |
| SFA 8:0 C | 0 g |
| SFA 10:0 C | 0 g |
| SFA 12:0 C | 0 g |
| SFA 14:0 C | 0 g |
| SFA 16:0 C | 0.018 g |
| SFA 18:0 C | 0.002 g |
| MUFA 18:1 C | 0.018 g |
| PUFA 18:3 C | 0.008 g |
| PUFA 20:4 C | 0 g |
| MUFA 16:1 C | 0.002 g |
| PUFA 18:4 C | 0 g |
| MUFA 20:1 C | 0 g |
| MUFA 22:1 C | 0 g |
| PUFA 22:5 n-3 (DPA) C | 0 g |
Carotenoids (6)
| Beta-carotene C | 686 µg |
|---|---|
| Lycopene C | 1,420 µg |
| Lutein + zeaxanthin C | 5 µg |
| Retinol C | 0 µg |
| Carotene, alpha C | 3 µg |
| Cryptoxanthin, beta C | 6 µg |
Other components (8)
| Water C | 88.1 g |
|---|---|
| Alcohol C | 0 g |
| Caffeine C | 0 mg |
| Theobromine C | 0 mg |
| Folic acid C | 0 µg |
| Folate, food C | 13 µg |
| Vitamin E, added C | 0 mg |
| Vitamin B-12, added C | 0 µg |
Other forms of Grapefruit
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Grapefruit, raw Raw | 32 | 0.63 g | 8.1 g | 0.1 g |
| Grapefruit, raw, white, Florida Raw | 32 | 0.63 g | 8.2 g | 0.1 g |
| Grapefruit, sections, canned, water pack, solids and liquids Canned | 36 | 0.58 g | 9.2 g | 0.1 g |
| Grapefruit, sections, canned, juice pack, solids and liquids Canned | 37 | 0.7 g | 9.2 g | 0.09 g |
| Grapefruit, sections, canned, light syrup pack, solids and liquids Canned | 60 | 0.56 g | 15.4 g | 0.1 g |
| Grapefruit, raw, pink and red, all areas Raw | 42 | 0.77 g | 10.7 g | 0.14 g |
| Grapefruit, raw, pink and red, California and Arizona Raw | 37 | 0.5 g | 9.7 g | 0.1 g |
| Grapefruit, raw, pink and red, Florida Raw | 30 | 0.55 g | 7.5 g | 0.1 g |
| Grapefruit, raw, white, all areas Raw | 33 | 0.69 g | 8.4 g | 0.1 g |
| Grapefruit, raw, white, California Raw | 37 | 0.88 g | 9.1 g | 0.1 g |
| Grapefruit, canned Canned | 36 | 0.58 g | 9.2 g | 0.1 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Papaya, raw Raw | 43 | 0.47 g | 10.8 g | 0.26 g |
| Peach, yellow, raw Raw | 39 | 0.91 g | 9.5 g | 0.25 g |
| Apricot, raw Raw | 48 | 1.4 g | 11.1 g | 0.39 g |
| Strawberries, raw Raw | 32 | 0.67 g | 7.7 g | 0.3 g |
| Watermelon, raw Raw | 30 | 0.61 g | 7.6 g | 0.15 g |
| Orange juice, raw Raw | 45 | 0.7 g | 10.4 g | 0.2 g |
| Apricot, with skin, raw Raw | 44 | 0.96 g | 10.2 g | 0.41 g |
| Orange, raw Raw | 47 | 0.94 g | 11.8 g | 0.12 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw grapefruit?
100 g of raw grapefruit has 42 kcal. 1 cup (180 g): about 76 kcal. 1 section/slice (25 g): about 11 kcal. 1 half (154 g): about 65 kcal.
How much protein is in raw grapefruit?
Raw grapefruit contains 0.77 g of protein per 100 g (2% of the 50 g Daily Value), or 1.4 g in 1 cup (180 g). About 7% of its calories come from protein. Compared with other citrus fruits, that is above the median (median 0.74 g).
How many carbs are in raw grapefruit?
Raw grapefruit has 10.7 g of total carbohydrates per 100 g, including 1.6 g of fiber and 6.9 g of sugars.
How much fat is in raw grapefruit?
Raw grapefruit contains 0.14 g of fat per 100 g, of which 0.021 g is saturated (0.1% of the Daily Value).
What vitamins and minerals does raw grapefruit contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamin C (35% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw grapefruit?
100 g contains 0 mg of sodium, 0% of the 2,300 mg Daily Value.
Does grapefruit have the same nutrition raw and canned?
No. Per 100 g, grapefruit, raw has 42 kcal, while grapefruit, sections, canned, water pack, solids and liquids has 36 kcal. Processing changes the water content, so always use the record that matches how you weigh the food.
Where does this nutrition data come from?
From USDA FoodData Central: FNDDS (Survey), record dated October 31, 2024. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: FNDDS (Survey), record 2709165. License: CC0 1.0 (U.S. public domain). Source record dated October 31, 2024. Imported November 6, 2026.
Last updated: . Data quality score: 100/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.