Part of the data ring
FuelFacts
Fruits and Fruit JuicesPlate 0918 of 1799

Calories in
grapefruit juice, pink, raw

39 kcal per 100 g Grapefruit juice, pink, raw contains 39 calories per 100 grams, or about 96 calories per cup. Per 100 g it provides 0.5 g protein, 9.2 g carbohydrate and 0.1 g fat.

By calories that splits 93% carbohydrate, 5% protein, 2% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 167774·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 0918 of 1799
93% 0 10 20 29 39 kcal
Protein 0.5 g × 4 kcal/g 2 kcal · 5%
Carbohydrate 9.2 g × 4 kcal/g 37 kcal · 93%
Fat 0.1 g × 9 kcal/g 0.9 kcal · 2%
Shorthand total Atwater 4 · 4 · 9 40 kcal
As published by USDA food-specific factors 39 kcal

The 4·4·9 shorthand adds to 40 kcal and USDA publishes 39 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.

SourceUSDA FoodData Central, SR LegacyFDC 167774retrieved 2026-07

Per 100 g39kcal
Per cup96kcal · 247.0 g
Protein0.5g per 100 g
Walk it off20minutes walking
Proteingrams
Carbsgrams
Fatgrams
Walk it offmin at 70 kg

How this is worked out

  1. USDA measures every nutrient per 100 g of edible portion. That row is published here unchanged — nothing is rounded up, smoothed or "adjusted".
  2. The energy figure is USDA's own, derived with food-specific factors. This site never computes the calorie count it publishes.
  3. The Atwater shorthand 4 · 4 · 9 is applied to the protein, carbohydrate and fat grams only to split that energy into shares — and where the shorthand disagrees with the published figure, the gap is printed rather than hidden.
  4. A serving is a straight proportional conversion of the per-100 g row, using USDA's own household measures for the grams.
  5. The walking figure uses MET 4.0 at 70 kg, the same equation the sister site publishes.
per serving   = per 100 g × serving grams ÷ 100
energy shares = 4·P + 4·C + 9·F      (P, C, F in grams)
walk minutes  = kcal ÷ (4.0 × 3.5 × 70 ÷ 200)

Full data & method →

Calories in a typical serving

Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.

ServingGramsCaloriesProteinCarbsFat
1 cup247.0 g 96 1.2 g22.7 g0.2 g
1 fruit yields196.0 g 76 1.0 g18.0 g0.2 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per cup

NutrientPer 100 gPer cup
Energy39 kcal96 kcal
Protein0.5 g1.2 g
Total fat0.1 g0.2 g
Saturated fat0.0 g0.0 g
Carbohydrate9.2 g22.7 g
Sodium1.0 mg2.5 mg
Potassium162.0 mg400.1 mg
Calcium9.0 mg22.2 mg
Iron0.2 mg0.5 mg
Vitamin C38.0 mg93.9 mg
Vitamin A22.0 µg54.3 µg
Cholesterol0.0 mg0.0 mg
Water90.0 g222.3 g

A dash means the nutrient was not measured for this item, which is not the same as zero.

SOURCE·USDA SR Legacy·FDC 167774·REVIEWED JUL 2026

How grapefruit juice, pink, raw compares

Among the 92 fruits and fruit juices items on this site, grapefruit juice, pink, raw ranks 74 of 92 by calorie density, against a category average of 74 kcal per 100 g — so it is about 47% less calorie-dense than typical for its group.

It carries 1.3 g of protein per 100 calories, so it is not a meaningful protein source.

To burn off one cup (96 kcal), a 70 kg adult would walk for roughly 20 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

A reference table describes the average grapefruit juice, pink, raw. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in grapefruit juice, pink, raw?

Grapefruit juice, pink, raw contains 39 calories per 100 g, which works out to about 96 calories per cup. It also provides 0.5 g of protein, 9.2 g of carbohydrate and 0.1 g of fat per 100 g.

What is the macro breakdown of grapefruit juice, pink, raw?

By calories, grapefruit juice, pink, raw is roughly 93% carbohydrate, 5% protein and 2% fat. That makes it a predominantly carbohydrate-based food.

How long does it take to burn off a cup?

About 20 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.

Is this figure exact for the grapefruit juice, pink, raw I bought?

No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.

Source: USDA FoodData Central, SR Legacy — public domain, reviewed JUL 2026. Full USDA description: "Grapefruit juice, pink, raw". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.