Grapefruit Nutrition Facts & Calories

100g of grapefruits contain about 42 calories (kcal).
Calories per: ounce | one grapefruit | slice

For example, a medium size grapefruit (265 g) contain about 111 calories.

This is about 6% of the daily caloric intake for an average adult with medium weight and activity level (assuming a 2000 kcal daily intake).

Grapefruit key facts

The nutrients that matter most in fruit and vegetables, per 100 g, compared with apple.

Nutrient (per 100 g)	Grapefruit	Apple a common fruit
Sugar	6.9 g	10 g
Fiber	1.6 g	2.4 g
Vitamin C	31 mg	4.6 mg
Potassium	135 mg	107 mg

• Sugar: 18.3 g in medium size grapefruit, that is 4.5 sugar cubes (4 g each).
• Grapefruit has 19% fewer calories than the typical fruit on this site (52 kcal per 100 g is the median of fruits).

To visualize how much 111 kcal actually is, keep in mind that the calorie content of medium size grapefruit is similar to that of, for example:

• 1 medium apple (96 kcal)
• 1 medium banana (116 kcal)
• 4.5 medium carrots (25 kcal each)
• 1.5 medium potatoes (69 kcal each)

Take a quick look at the tables below for detailed information about grapefruit nutrition.