Grapefruit juice calories
1 glass
83 calories
Grapefruit juice, unsweetened, vitamin c · about 200 g
- Protein
- 1.3 g
- Carbs
- 18 g
- Fat
- 0.4 g
- Fibre
- 0 g
An estimate using a familiar portion size. Calories here mean kilocalories (kcal). Source and portion sizes
How many calories are in your portion?
Grapefruit juice, unsweetened, vitamin c · one item or portion ≈ 200 g
| Amount | Calories, approx. |
|---|---|
| ½ glass(100 g) | 42 calories |
| 1 glass(200 g) | 83 calories |
| 2 glasses(400 g) | 167 calories |
| 3 glasses(600 g) | 250 calories |
Nutrition per serving and per 100 grams
Grapefruit juice, unsweetened, vitamin c · 1 glass (200 g)
| Nutrient | Serving | 100 g |
|---|---|---|
| Energy | 83 kcal | 42 kcal |
| Protein | 1.3 g | 0.6 g |
| Carbohydrate | 18 g | 9 g |
| Fat | 0.4 g | 0.2 g |
| Fibre | 0 g | 0 g |
| Sugars | 18 g | 9 g |
| Salt | 0.07 g | 0.04 g |
Grapefruit juice calories per serving
1 glass contains about 83 calories. Source entry: Grapefruit juice, unsweetened, vitamin c. One default serving in this calculator represents 200 g. Actual sizes and recipes may differ.
Protein in this portion is about 1.3 g. Per 100 g, the energy value is about 42 kcal. Fineli.
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Frequently asked questions
How big is the portion in this calculator?
The default is one glass (200 g), using the measure for this particular Fineli entry. Half means half of that amount. Choose the closest size to your portion; a visual estimate is not a weighed measurement.
How are calories and nutrients calculated?
The calculator multiplies the item or portion count by the source portion weight and the nutrient value per 100 g, then divides by 100. Only displayed values are rounded. Missing nutrition values appear as a dash.
Does this match my exact food?
The size selector shows cup or glass volume. Calculations use this drink’s source weight rather than assuming all liquids weigh the same. Count milk, sugar and other additions separately unless included in the source entry.
Sources, portion sizes and method
Nutrition values and piece/portion weights: THL, Fineli open data 20.0, downloaded 2026-09-22. Calotank has added everyday portion names and calculated results from the source values.
Portions are examples, not recommended servings or guaranteed weights for every item. Check the source entry for edible parts and preparation. Calculations use the portion weights for this specific entry.
Example piece or portion weights for this food: 150 ml 150 g · 200 ml 200 g · 300 ml 300 g.
Portion nutrition = number of items × weight of one item or portion × nutrient value per 100 g ÷ 100. Calculations retain source precision; only displayed results are rounded. Missing values appear as a dash. Changing the calculator does not save or send inputs to a server or the app.
Fineli open data · CC BY 4.0. Calotank is independent and is not produced or endorsed by THL.
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