FoundationVegetables and Vegetable Productsvalues per 100 g

Tomato, roma

Energy

22 kcal / 100 g

Nutrients reported

Measured portions

Portion converter

Nutrition data is published per 100 g. Pick a portion to see what it works out to.

No measured portion sizes are published for this food — enter grams directly.

Or enter grams

Total weight

100 g

Nutrient	Per 100 g	In this amount
Energy (Atwater General Factors)(chosen energy value)	22 kcal	22 kcal
Water	94.7 g	94.7 g
Energy (Atwater Specific Factors)	19 kcal	19 kcal
Nitrogen	0.11 g	0.11 g
Protein	0.70 g	0.70 g
Total lipid (fat)	0.42 g	0.42 g
Ash	0.31 g	0.31 g
Carbohydrate, by difference	3.84 g	3.84 g
Fiber, total dietary	0.97 g	0.97 g
Calcium, Ca	9.96 mg	9.96 mg
Iron, Fe	0.10 mg	0.10 mg
Magnesium, Mg	8.09 mg	8.09 mg
Phosphorus, P	19.1 mg	19.1 mg
Potassium, K	192.8 mg	192.8 mg
Sodium, Na	0 mg	0 mg
Zinc, Zn	0.08 mg	0.08 mg

Estimates. Portion weights are the published averages for this food. A cup of chopped carrot and a cup of sliced carrot do not weigh the same, so treat the result as approximate.

About zeros. A value of 0 may mean the nutrient is genuinely absent, or that it was not measured / was below the limit of detection. USDA does not distinguish between the two, so this site does not use 0 values for filtering or for "free from" claims.

This converter does not use zero values to claim a food is free of anything, and it is not dietary or medical advice.

Nutrition per 100 g

37 nutrients reported for this food. "Samples" is the number of analytical samples the value is based on.

Nutrient	Per 100 g	Samples
Energy (Atwater General Factors)(chosen energy value)	22 kcal	—
Water	94.7 g	7
Energy (Atwater Specific Factors)	19 kcal	—
Nitrogen	0.11 g	8
Protein	0.70 g	—
Total lipid (fat)	0.42 g	8
Ash	0.31 g	8
Carbohydrate, by difference	3.84 g	—
Fiber, total dietary	0.97 g	8
Calcium, Ca	9.96 mg	8
Iron, Fe	0.10 mg	8
Magnesium, Mg	8.09 mg	8
Phosphorus, P	19.1 mg	8
Potassium, K	192.8 mg	8
Sodium, Na	0 mg	8
Zinc, Zn	0.08 mg	8
Copper, Cu	0.03 mg	8
Manganese, Mn	0.09 mg	8
Selenium, Se	0 µg	8
Vitamin C, total ascorbic acid	17.8 mg	8
Thiamin	0.06 mg	8
Riboflavin	0 mg	8
Niacin	0.53 mg	8
Vitamin B-6	0.08 mg	8
Biotin	0.47 µg	8
Folate, total	9.99 µg	8
Vitamin A, RAE	23.9 µg	—
Carotene, beta	275.5 µg	8
Carotene, alpha	0.88 µg	8
Carotene, gamma	2.13 µg	8
Cryptoxanthin, beta	19.1 µg	8
Cryptoxanthin, alpha	9.63 µg	8
Lycopene	2863.0 µg	8
Lutein + zeaxanthin	56.0 µg	—
cis-Lutein/Zeaxanthin	0 µg	8
Lutein	56.0 µg	8
Zeaxanthin	0 µg	8

Why there is only one energy value here

USDA publishes three different energy nutrients (IDs 1008, 2047, 2048) plus a kilojoule value. This page uses 2047 — Energy (Atwater General Factors) — falling back to the others only when it is absent. Sites that mix them can report different calorie counts for the same food.

Allergens: do not rely on this page

This dataset has no structured allergen field, and reference values describe a generic food — not the product you are holding. Always read the actual label before eating anything.

If you have a food allergy, treat this page as background information only.

Similar foods

Vegetables and Vegetable Products

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov. (Foundation Foods, release 2026-04-30) — https://fdc.nal.usda.gov/ · Data last updated 2026-09-27