How Many Calories is a Tomato? Find Out the Nutritional Value of this Popular Fruit.

If you’re trying to maintain a healthy diet, it’s important to keep track of the calories you consume. Tomatoes are a popular ingredient in many dishes, but how many calories do they actually contain? In this article, we’ll take a closer look at the caloric content of tomatoes and how they fit into a healthy diet.

A ripe tomato sits on a kitchen scale, displaying its weight in grams. A nutrition label nearby lists the calorie count per serving

Tomatoes are a nutrient-dense food that are low in calories. According to the United States Department of Agriculture (USDA), one small tomato (2 2/5″ in diameter) contains just 16 calories, 0.8g of protein, 3.5g of carbohydrates, and 0.2g of fat. Tomatoes are also an excellent source of vitamin C, fiber, and vitamin K. With such a low caloric content and high nutritional value, tomatoes are a great addition to any healthy diet.

Key Takeaways

  • Tomatoes are a low-calorie, nutrient-dense food.
  • One small tomato contains just 16 calories.
  • Tomatoes are an excellent source of vitamin C, fiber, and vitamin K.

Nutritional Profile of a Tomato

A whole tomato with a nutrition label showing its calorie count

Tomatoes are a low-calorie food that is packed with nutrients. They are a good source of vitamins and minerals, and they also contain macronutrients like carbohydrates, fiber, and protein.

Vitamins and Minerals

Tomatoes are a rich source of vitamins and minerals. One small (100-gram) raw tomato contains 18 calories and is a good source of vitamin C, vitamin K, and potassium. Tomatoes also contain small amounts of other vitamins and minerals, including vitamin A, vitamin E, folate, and calcium.


Tomatoes are low in calories and carbohydrates, making them a great choice for people who are watching their weight or trying to manage their blood sugar levels. One small (100-gram) raw tomato contains 3.5 grams of carbohydrates, 0.8 grams of protein, and 0.2 grams of fat. Tomatoes are also a good source of fiber, with one small tomato containing approximately 1 gram of fiber.

Overall, tomatoes are a nutritious food that can be enjoyed in a variety of ways. They can be eaten raw, cooked, or used in a variety of dishes, such as salads, soups, and sauces. With their low calorie count and high nutrient content, tomatoes are a great addition to any healthy diet.

Caloric Content of Different Tomato Varieties

A variety of tomatoes displayed with calorie counts labeled for each type

Tomatoes come in a variety of shapes, sizes, and colors. While the nutritional value of tomatoes remains relatively consistent across different varieties, the caloric content can vary slightly. Here’s a breakdown of the caloric content of different tomato varieties:

  • Cherry Tomatoes: These small, bite-sized tomatoes are perfect for snacking or adding to salads. One cup of cherry tomatoes contains approximately 27 calories.

  • Grape Tomatoes: Grape tomatoes are slightly larger than cherry tomatoes and have a more oblong shape. One cup of grape tomatoes contains approximately 53 calories.

  • Roma Tomatoes: Roma tomatoes are a popular variety for making tomato sauce and paste. One medium Roma tomato contains approximately 35 calories.

  • Beefsteak Tomatoes: Beefsteak tomatoes are the largest variety of tomatoes and are often used for making sandwiches and burgers. One medium beefsteak tomato contains approximately 33 calories.

As you can see, the caloric content of different tomato varieties is relatively consistent. Regardless of which variety you choose, tomatoes are a nutritious and low-calorie addition to your diet.

Factors Affecting Calorie Count in Tomatoes

Size and Type

The calorie count in tomatoes can vary based on the size and type of tomato you are consuming. Generally, larger tomatoes will have more calories than smaller ones. For example, a small tomato (about 2 2/5 inches in diameter) contains only 16 calories, while a medium-sized tomato (about 123 grams) contains 22 calories [1].

Additionally, different types of tomatoes can have varying calorie counts. For instance, cherry tomatoes are smaller and generally have fewer calories than beefsteak tomatoes. Roma tomatoes are also known to have fewer calories than other types of tomatoes.


The ripeness of a tomato can also affect its calorie count. Ripe tomatoes tend to have more calories than unripe ones. This is because as a tomato ripens, its sugar content increases, which in turn leads to an increase in calories.

It’s also worth noting that cooking tomatoes can affect their calorie count. For example, a cup of cooked tomatoes contains more calories than a cup of raw tomatoes. This is because cooking breaks down the cell walls in tomatoes, making it easier for your body to digest them and absorb their nutrients, including calories.

Overall, while the calorie count in tomatoes can vary based on size, type, and ripeness, they are generally a low-calorie food that can be a healthy addition to your diet.

[1] Chef’s Resource

Comparing Tomatoes to Other Vegetables

When it comes to comparing the calorie content of tomatoes to other vegetables, it’s important to keep in mind that not all vegetables are created equal. Some vegetables are more calorie-dense than others, while others are lower in calories but higher in other nutrients.

Here’s a comparison of the calorie content of tomatoes to some other commonly consumed vegetables:

  • Tomatoes: One medium-sized tomato contains approximately 22 calories.
  • Cucumbers: One medium-sized cucumber contains approximately 24 calories.
  • Bell peppers: One medium-sized bell pepper contains approximately 24 calories.
  • Carrots: One medium-sized carrot contains approximately 25 calories.
  • Broccoli: One cup of chopped broccoli contains approximately 55 calories.

As you can see, tomatoes are on the lower end of the calorie spectrum when compared to other vegetables. However, it’s important to note that calorie content isn’t the only factor to consider when it comes to choosing which vegetables to include in your diet.

For example, broccoli is higher in calories than tomatoes, but it’s also much higher in fiber, vitamin C, and other important nutrients. Similarly, carrots are slightly higher in calories than tomatoes, but they’re also an excellent source of vitamin A.

So while tomatoes may be a low-calorie vegetable, it’s important to eat a variety of different vegetables to ensure that you’re getting a wide range of nutrients in your diet.

Incorporating Tomatoes into a Healthy Diet

Tomatoes are a versatile and healthy addition to any diet. They are low in calories, high in fiber, and packed with vitamins and minerals. Here are some ideas for incorporating tomatoes into your meals.

Recipe Ideas

There are countless ways to use tomatoes in your cooking. Here are a few ideas to get you started:

  • Caprese salad: Slice fresh tomatoes and mozzarella cheese, and arrange them on a plate. Drizzle with olive oil and balsamic vinegar, and sprinkle with fresh basil leaves.
  • Tomato soup: Simmer chopped tomatoes, onions, and garlic in chicken or vegetable broth until tender. Puree the mixture in a blender, and season with salt, pepper, and herbs.
  • Salsa: Combine chopped tomatoes, onions, jalapenos, and cilantro in a bowl. Squeeze in some lime juice, and season with salt and pepper. Serve with tortilla chips or use as a topping for grilled chicken or fish.

Portion Control

While tomatoes are low in calories, it’s still important to practice portion control. Here are some tips for enjoying tomatoes in moderation:

  • Use smaller tomatoes: Cherry tomatoes and grape tomatoes are a great snack or salad topper. They are naturally portion-controlled, so you don’t have to worry about overeating.
  • Measure your portions: If you’re using larger tomatoes, measure out a serving size to avoid overeating. One medium tomato is about the size of a baseball and contains around 22 calories.
  • Pair with other healthy foods: Tomatoes are great when paired with other healthy foods, like leafy greens, lean protein, and healthy fats. This can help you feel more satisfied and prevent overeating.

Incorporating tomatoes into your diet can help you meet your daily nutrient needs and add flavor to your meals. Try out some of these ideas and see how you can make tomatoes a regular part of your healthy eating plan.

Frequently Asked Questions

What is the caloric content of a medium-sized tomato?

A medium-sized tomato typically contains around 22 calories. However, the exact number of calories may vary depending on the size and type of tomato.

How many calories can you find in 100 grams of tomatoes?

In 100 grams of tomatoes, there are approximately 18 calories. This makes tomatoes a low-calorie food that can be a great addition to a healthy diet.

Are cherry tomatoes low in calories?

Yes, cherry tomatoes are low in calories. One cherry tomato contains only about 3 calories, making them a great snack for those who are watching their calorie intake.

Can eating tomatoes daily have any health benefits?

Yes, eating tomatoes daily can have many health benefits. Tomatoes are a great source of vitamins and minerals, including vitamin C, potassium, and fiber. They are also rich in antioxidants, which can help protect your body against disease.

Do tomatoes contribute significantly to calorie intake compared to carbs?

No, tomatoes are low in calories and carbohydrates. In fact, a medium-sized tomato contains only about 4 grams of carbohydrates, making them a great food for those who are watching their carb intake.

What nutritional value does a whole tomato provide?

A whole tomato provides many important nutrients, including vitamin C, vitamin K, potassium, and fiber. Tomatoes are also rich in antioxidants, which can help protect your body against disease. Additionally, tomatoes are low in calories and carbohydrates, making them a great food for those who are watching their calorie and carb intake.

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