Published by Saura ·
Tomatoes nutrition: calories, protein and portion sizes
In this Fineli Release 20.0 reference, 100 g provides about 23 kcal and 0.6 g protein. Reference food and preparation: raw tomatoes. Match the edible weight and preparation below, or use the current label for your own product.
Quick answer
An example 150 g edible portion of tomatoes (raw tomatoes) supplies about 34 kcal, 0.8 g protein and 2.1 g fiber. This is a scaled food-composition estimate, not a recommended serving size.
Tomatoes: nutrition per 100 g and example portion
Reference preparation: raw tomatoes. The exact source name is “Tomato” (Fineli food 352). Available carbohydrate excludes fiber and is not the same measure as US Total Carbohydrate.
Values are rounded after scaling. A small reported amount may round below 0.1 g; a missing value is marked Not available rather than treated as zero. This selected extract does not include sugar, sodium or micronutrient amounts; the full Fineli database contains information beyond these tables.
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| Nutrient | Per 100 g | Per 150 g example |
|---|---|---|
| Energy | 23 kcal | 34 kcal |
| Protein | 0.6 g | 0.8 g |
| Available carbohydrate (excludes fiber) | 3.5 g | 5.2 g |
| Fat | 0.3 g | 0.5 g |
| Saturated fat | <0.1 g | 0.1 g |
| Fiber | 1.4 g | 2.1 g |
How to weigh tomatoes
Weigh raw edible tomatoes after trimming. Tomato paste, passata, ketchup and sun-dried tomatoes contain different amounts of water or added ingredients. This plain-tomato value should not be applied to a concentrated spoon of paste.
Calculate your own tomatoes portion
For the 150 g example, multiply the source amounts by 150 ÷ 100 = 1.5. The unrounded energy calculation is 22.7 × 1.5 = 34.05 kcal, displayed as approximately 34 kcal. Use the same factor for protein, available carbohydrate, fat and fiber.
For another amount, replace 150 with your own edible weight. Keep the preparation as raw tomatoes; if your food is prepared differently, choose a matching reference or calculate its recipe instead.
How preparation changes the estimate
A tomato sauce can be mostly tomatoes or can contain substantial oil, meat, cheese and sugar. Build a recipe from its ingredients for a better estimate. Cherry and large tomatoes can also differ from the representative reference sample.
Meal ideas using tomatoes
Use these combinations as menu ideas and adjust the amounts to your appetite and preferences. Each added ingredient belongs in the complete meal estimate.
- Serve sliced tomatoes with rye bread and cottage cheese.
- Combine tomatoes with cooked lentils and quinoa for a lunch bowl.
Compare other vegetables
The following are separate reference foods, shown per 100 g for orientation. Check the preparation column: dry, raw and cooked values are not interchangeable, and equal gram weights are not necessarily equivalent portions.
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| Food | Reference preparation | Energy / 100 g | Protein / 100 g | Fiber / 100 g |
|---|---|---|---|---|
| Zucchini | raw zucchini or summer squash | 18 kcal | 0.7 g | 0.7 g |
| Spinach | plain spinach | 18 kcal | 2.1 g | 1.9 g |
| Cucumber | raw cucumber | 11 kcal | 0.7 g | 0.7 g |
Nutrition values and photo results are estimates. Check ingredients and portions before saving a meal.
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- Zucchini nutrition: calories, protein and portion sizesZucchini (raw): about 18 kcal and 0.7 g protein per 100 g. See portion calculations, preparation notes and the exact Fineli source.
- Spinach nutrition: calories, protein and portion sizesSpinach (fresh): about 18 kcal and 2.1 g protein per 100 g. See portion calculations, preparation notes and the exact Fineli source.
- Cucumber nutrition: calories, protein and portion sizesCucumber (raw): about 11 kcal and 0.7 g protein per 100 g. See portion calculations, preparation notes and the exact Fineli source.
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Frequently asked questions
How many calories are in 150 g of tomatoes?
This raw tomatoes reference supplies about 34 kcal per 150 g edible portion. Match the preparation state and check a package label when available.
Does the preparation of tomatoes matter?
A tomato sauce can be mostly tomatoes or can contain substantial oil, meat, cheese and sugar. Build a recipe from its ingredients for a better estimate. Cherry and large tomatoes can also differ from the representative reference sample.
How do I calculate a different portion?
Multiply each per-100 g nutrient amount by your edible serving weight divided by 100. Match raw, dry, cooked or drained weight to the reference and include sauces or cooking additions separately.
Sources and method
- Fineli food 352: Tomato
Exact source record (Finnish interface). Values use the committed Release 20.0 extract, not a live query; a current record or a product label may differ.
- Fineli — National Food Composition Database in Finland (THL)
Release 20.0, accessed May 9, 2026. CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Selected records are scaled to example portions and rounded; available carbohydrate excludes fiber. Source values describe representative foods, not a laboratory measurement of your meal.
- Fineli food 389: Zucchini, summer squash
Exact record used in the comparison table; match the preparation shown in that row.
- Fineli food 33456: Spinach
Exact record used in the comparison table; match the preparation shown in that row.
- Fineli food 346: Cucumber
Exact record used in the comparison table; match the preparation shown in that row.
- Creative Commons Attribution 4.0 International
Fineli data license. THL source values have been selected, scaled to example portions and rounded for this page. Editorial meal ideas and preparation explanations are Saura additions.