Food weight and portion guide
Tomato: calories and portions
Tomatoes, red, ripe, raw, year round average
These values are for fresh tomatoes. Tomato paste contains less water and is more concentrated.
Calculate your portion
Enter 0.1–5,000 g. Exclude inedible skin, stones and bones.
for 100 g:
- Calories
- 18 kcal
- Protein
- 0.9 g
- Carbohydrate
- 3.9 g
- Fat
- 0.2 g
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Nutrition by weight
| Weight | Calories | Protein | Carbohydrate | Fat |
|---|---|---|---|---|
| 100 g | 18 | 0.9 g | 3.9 g | 0.2 g |
| 200 g | 36 | 1.8 g | 7.8 g | 0.4 g |
Values are scaled from the per-100-g data and rounded. “Calories” means kilocalories (kcal).
Tips for weighing and logging
For tomato omelette, include the eggs and oil as well as tomatoes.
To calculate manually, multiply your portion weight in grams by 18 and divide by 100. For example, 100 g provides approximately 18 kcal.
When logging a photo, check the food, cooking method and estimated portion before saving. A photograph cannot reliably show hidden oil or exact weight.
Sources and calculation method
The record below provides values per 100 g of edible food. One reference variety or brand does not represent every product.Library method and limitations
- USDA FoodData Central — SR Legacy — Tomatoes, red, ripe, raw, year round average · FDC ID: 170457 · SR Legacy Collection, April 2018
Data review and calculation: October 2, 2026. Author: Avocado editorial team. This guide supports food logging; it does not replace personalised advice from a registered dietitian.