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A ripe, round tomato with smooth, glossy red skin and a small green star-shaped calyx at the top.
●Low GI
★Natural

Tomato Calories

Low-calorie, rich in lycopene

In season: Summer · Autumn

CALORIES · 100 G

18kcal

GI

15low

POTASSIUM · 100 G

237mg

FIBER · 100 G

1.2g

Quick answer

1 piece (medium) of Tomato (123 g) has 22 calories. That works out to 18 calories per 100 g. It contains 4.8 g of carbs, 1.1 g of protein, 0.2 g of fat and 1.5 g of fiber. Its 16.9 mg of Vitamin C covers 19% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.

Tomato Nutrition Facts

Selected: 1 piece (medium) · 123 g

22

KCAL / 123G

Carbs

4.8g

· 2% DV

Protein

1.1g

· 2% DV

Fat

0.2g

· 0% DV

Fiber

1.5g

· 5% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 76% · Protein 17% · Fat 7%

Tomato nutrition facts table · 1 piece (medium) (123 g)

NutrientAmount% DV
Calories22 kcal
Total fat0.2 g0%
Saturated fat0.03 g0%
Trans fat0 g
Sodium6.15 mg0%
Total carbohydrate4.8 g2%
Fiber1.5 g5%
Protein1.1 g2%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Tomato?

ServingAmountCalories
1 piece (medium)123 g22 kcal
1 piece (mini)20 g4 kcal
1 slice (thin)20 g4 kcal
1 slice (thick)30 g5 kcal
1 piece (small)60 g11 kcal
100 g100 g18 kcal
1 cup (chopped)180 g32 kcal
1 piece (large)182 g33 kcal
1 cup (diced)245 g44 kcal

Calculated from 18 calories per 100 g.

Frequently Asked Questions About Tomato

Should tomatoes be refrigerated?

Not usually, if they are still ripening: keep tomatoes at room temperature to preserve their aroma and texture. Refrigerate very ripe tomatoes if you need to slow spoilage, then let them warm up before serving for better flavor.

How can you tell when a tomato is ripe?

A ripe tomato has its expected full color, feels slightly yielding rather than hard, and smells fragrant near the stem. Avoid tomatoes with bruises, leaking spots, or wrinkled skin if you plan to store them.

Can you freeze tomatoes?

Yes, tomatoes freeze well whole, chopped, or puréed. Thawing makes them soft and watery, so frozen tomatoes work best in cooked dishes such as soups, stews, and sauces rather than fresh salads.

Do you need to wash tomatoes before eating them?

Yes, rinse tomatoes under clean running water before cutting or eating them, and gently rub the surface to remove dirt. Dry them with a clean towel; soap or produce wash is unnecessary.

Are tomatoes fruits or vegetables?

Botanically, tomatoes are fruits because they develop from a flower and contain seeds. In cooking, they are usually treated as vegetables because their savory flavor suits salads, sauces, and main dishes.

Does cooking tomatoes make their lycopene easier to absorb?

Yes, cooking can make lycopene in tomatoes more available for the body to use. Having cooked tomatoes with a little oil can further support absorption, while raw tomatoes remain a nutritious choice too.

Can green tomatoes ripen after being picked?

Yes, mature green tomatoes can continue ripening indoors. Leave them at room temperature away from direct sunlight and check them regularly; very small, immature tomatoes may not ripen successfully.

Why do tomatoes split while growing?

Tomatoes often split when they take up water quickly after a dry spell, causing the fruit to expand faster than its skin. Watering consistently can reduce splitting; use split fruit promptly if it has no signs of spoilage.

Should you remove tomato seeds when making sauce?

No, removing tomato seeds is not necessary for safety or flavor. Leave them in for a more rustic sauce, or scoop out the watery seed chambers if you want a thicker, smoother result.

Can you eat the skin of a tomato?

Yes, tomato skin is edible and does not need to be removed. Peel tomatoes when a recipe calls for a particularly smooth sauce or soup; scoring and briefly blanching them makes the skin easier to slip off.

Tomato Vitamins & Minerals

Vitamins

Vitamin C

16.85mg · 19% DV

Biotin

4.92µg · 16% DV

Vitamin K

9.72µg · 8% DV

B6

0.1mg · 6% DV

Minerals

Potassium ⭐

292mg · 9% DV

Copper

0.07mg · 8% DV

Manganese

0.14mg · 6% DV

Phosphorus

30mg · 4% DV

Sodium

6.15mg · 0% DV

Tomato Glycemic Index

GLYCEMIC INDEX

15
Low
0 Low5570100

GLYCEMIC LOAD

1.2
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Tomato

To burn the 22 calories in 1 piece (medium) (123 g):

🚶

5min

Walking (5 km/h)

🏃

2min

Running (8 km/h)

🚴

3min

Cycling

🏊

3min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Tomato?

Tomato with carrot brings together juicy, mildly tangy tomato and the carrot’s sweeter, firmer bite. It is best understood as a simple vegetable pairing rather than a single, widely established regional recipe. You can serve the two raw in a salad or alongside a sandwich, or add them to a home-cooked vegetable dish; finely chopped or grated carrot mixes easily with tomato. The tomato part is mostly water and low in calories, with lycopene and some fibre, so the combination makes a light addition to a meal. For a more filling plate, pair it with beans, lentils or a savoury grain. A little olive oil and herbs can round out the fresh flavours.

How Nutritious Is Tomato?

Nutrient density

High

78/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

46/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Tomato Processed?

NOVA 1

Unprocessed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Tomato Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Tomato Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Tomato Fat Profile

SATURATED

0.03g

MONOUNSATURATED

0.04g

POLYUNSATURATED

0.11g

⚖️

Omega 6:3 ratio 10:1

Above the ideal 4:1 (10:1).

Compare Tomato

🍅vs🍅
Tomato vs TomatoSame calories per 100 g
→
🍅vs🥗
Tomato vs Mixed Green SaladSame calories per 100 g
→
🍅vs🫑
Tomato vs Red Pepper13 kcal fewer per 100 g
→
🍅vs🥄
Tomato vs Boiled Beetroot26 kcal fewer per 100 g
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Foods Similar to Tomato

🍅

Tomato

18 kcal

🥗

Mixed Green Salad

18 kcal

🫑

Red Pepper

31 kcal

🥄

Boiled Beetroot

44 kcal

🫑

Green pepper

20 kcal

🥗

Potato Salad

110 kcal

🥗

Arugula

25 kcal

🥕🥦🍆

Oven-Roasted Mixed Vegetables

65 kcal

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Nutrition data compiled from USDA FoodData Central and scientific sources.