Which has more calories, Onion or Tomato?

Onion has more calories than Tomato: 40 kcal vs 18 kcal per 100 g.

Which has more protein, Onion or Tomato?

Onion has more protein than Tomato: 1.1 g vs 0.9 g per 100 g.

Which has more fat, Onion or Tomato?

Tomato has more fat than Onion: 0.2 g vs 0.1 g per 100 g.

Which has more carbohydrates, Onion or Tomato?

Onion has more carbohydrates than Tomato: 9.34 g vs 3.9 g per 100 g.

Onion vs Tomato: Which Has More Calories?

Per 100 g, Onion has 40 kcal and Tomato has 18 kcal, so Tomato has 55% fewer calories.

Onion has more carbohydrates (9.34 g vs 3.9 g). Relative to calories, Tomato is the better protein source (5 g vs 2.75 g of protein per 100 kcal).

Onion - calories, kcal, weight, nutrition

Nutrition Facts

Onion

Serving size:
change

one onion (110g)slice (15g)cup, sliced (115g)

5g10g15g20g30g40g50g60g80g100g120g140g160g180g200g220g250g300g350g400g450g500g600g700g800g900g1000g

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Amount Per Serving:

Calories

% Daily Value

Total Fat g

Saturated Fat g

Cholesterol mg

Sodium mg

Total Carbohydrates g

Dietary Fiber g

Sugars g

Protein g

Vitaminium C mg

Calcium mg

Iron mg

Potassium mg

Glycemic Index: 15

* The % Daily Value (DV) shows how much a nutrient in one serving of food contributes to your total daily diet. A 2000-calorie daily intake is used as a general guideline for nutrition advice.

Tomato

Serving size:
change

one tomato (123g)slice (20g)cup (180g)half cup (90g)

5g10g15g20g30g40g50g60g80g100g120g140g160g180g200g220g250g300g350g400g450g500g600g700g800g900g1000g

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Amount Per Serving:

Calories

% Daily Value

Total Fat g

Saturated Fat g

Cholesterol mg

Sodium mg

Total Carbohydrates g

Dietary Fiber g

Sugars g

Protein g

Vitaminium C mg

Calcium mg

Iron mg

Potassium mg

Glycemic Index:

* The % Daily Value (DV) shows how much a nutrient in one serving of food contributes to your total daily diet. A 2000-calorie daily intake is used as a general guideline for nutrition advice.

Onion vs Tomato 100g Compare

per 100g	Onion	Tomato
Calories	40	18
Carbohydrates	9.34 g	3.9 g
Fat	0.1 g	0.2 g
Dietary fiber	1.7 g	1.2 g
Protein	1.1 g	0.9 g
Calcium	23 mg	10 mg
Iron	0.21 mg	0.3 mg
Magnessium	10 mg	11 mg
Potassium	146 mg	237 mg
Sodium	4 mg	5 mg
Vitaminium A	2 IU	833 IU
Vitaminium B1 (Thiamine)	0.046 mg	0.037 mg
Vitaminium B3 (Niacin)	0.116 mg	0.594 mg
Vitaminium B6	0.12 mg	0.08 mg
Vitaminium B9 (Folic acid)	0.019 µg	15 µg
Vitaminium C	7.4 mg	13 mg
Vitaminium E	0.02 mg	0.54 mg
Beta karoten	1 µg	101 µg

More Calories in Onion

At first glance, you can see that in onion is much more calories than in tomato.

Onion has 40 kcal per 100g and tomato 18 kcal per 100g so it is pretty easy to calculate that the difference is about 122%.

In onion and in tomato most calories came from carbs.

See tables below to compare onion with tomato in details.

Add Onion to calculator

Add Tomato to calculator

Onion 100g

40kcal

Calories source

88% CARBS.
10% PROTEIN
2% FAT

Tomato 100g

18kcal

Calories source

74% CARBS
17% PROTEIN
9% FAT

Compares of onion

Compares of tomato

Related foods:

Related compares:

About the data

Nutrition values on this page are given per 100 g of the food and are based on the official United States Department of Agriculture FoodData Central database. The exact record used for each food is linked under the tables.

Marcin Piotrowicz – calories-info.com creator · Healthy diet and healthy lifestyle promoter. The information is for general purposes and is not medical or dietary advice.