Calorie chart · Fruit

Grapefruit - calories and nutrition information

100 g of grapefruit has 42 kcal, 0.8 g protein, 9.1 g carbs, and 0.1 g fat. Half a grapefruit (about 125 g) has about 53 kcal.

Serving
Grapefruit, 100 g42 kcal176 kJ
Protein0.8 g8% of energy
Carbs9.1 g90% of energy
Fat0.1 g2% of energy
Fiber
1.6 g
Sugars
6.9 g
Salt
0 g

Nutrition information: grapefruit

NutrientCarbs 100 g% RI*Half a grapefruit (125 g)
Energy42 kcal176 kJ2%53 kcal222 kJ
Fat0.1 g0%0.1 g
of which saturated fatty acids0 g0%0 g
Carbs9.1 g3%11.4 g
of which sugars6.9 g8%8.6 g
Fiber1.6 g-2 g
Protein0.8 g2%1 g
Salt0 g0%0 g
Water88.1 g-110.1 g

* RI = reference intake for an average adult (8400 kJ / 2000 kcal). Carbs exclude fiber, as shown on EU food labels.

How many calories are in a grapefruit?

Calories and macronutrients in typical servings. Use the calculator at the top of the page to calculate a different weight.

ServingCaloriesProteinCarbsFat
100 g42 kcal0.8 g9.1 g0.1 g
Half a grapefruit125 g53 kcal1 g11.4 g0.1 g
A whole grapefruit250 g105 kcal2 g22.8 g0.3 g

Vitamins and minerals

In 100 g of grapefruit, the most abundant nutrients are vitamin C (39% RI), vitamin A (7%), and potassium (7%). We show nutrients that provide at least 2% RI per 100 g.

NutrientCarbs 100 g% RI
Potassium135 mg7%
Calcium22 mg3%
Magnesium9 mg2%
Phosphorus18 mg3%
Vitamin C31.2 mg39%
Vitamin B1 (thiamin)0.04 mg4%
Vitamin B2 (riboflavin)0.03 mg2%
Vitamin B60.05 mg4%
Folate13 µg7%
Vitamin A58 µg7%

How grapefruit compares with other foods

Grapefruit has more calories per 100 g than 16% of the fruits in our chart. Here are foods in the fruit category with a similar calorie content (kcal per 100 g):

  1. Watermelon30 kcal
  2. Strawberries32 kcal
  3. Melon36 kcal
  4. Peach39 kcal
  5. Grapefruit42 kcal
  6. Blackberries43 kcal
  7. Nectarine44 kcal
  8. Plums46 kcal
  9. Clementine47 kcal

FAQs

How many calories are in half a grapefruit?
Half a grapefruit (about 125 g) has about 53 kcal: 1 g protein, 11.4 g carbs, and 0.1 g fat.
How many calories are in 100 g of grapefruit?
100 g of grapefruit has 42 kcal (176 kJ).
How much protein does grapefruit have?
Grapefruit has 0.8 g of protein per 100 g, and half a grapefruit has about 1 g.
How many carbs does grapefruit have?
100 g of grapefruit contains 9.1 g of digestible carbs, including 6.9 g of sugars, plus 1.6 g of fiber.

Data source: USDA FoodData Central, SR28 database - “Grapefruit, raw, pink and red, all areas” (NDB 09112). Polish names and serving sizes: EatSee editorial team. Values are estimates and depend on the variety, size, and preparation method. For packaged products, check the label for exact information. This page is for informational purposes and does not replace advice from a doctor or dietitian. Updated: . How we compile our calorie chart.