How Many Calories Are In Tomatoes? | Quick Facts

Calories In Tomatoes By Size And Form

Tomatoes are low in calories because water makes up most of their weight. A standard 100 g portion lands near 18–22 calories. A palm-size tomato weighs around 120–130 g, so one piece often sits near 22–26 calories. Cherry tomatoes come in lighter bites; one cup can weigh about 150 g and adds roughly 25–35 calories.

Calorie counts shift with form. Whole raw fruit has the most water, so it yields the lowest energy per bite. Sauce concentrates the fruit a bit and picks up calories from add-ins like oil or sugar. Paste and sun-dried jars push water out, so the same 100 g holds many more solids, which lifts calories.

Quick Reference Table: Common Tomato Portions

The chart below shows typical weights and calories for tomatoes and pantry products so you can size portions without guesswork.

Type	Typical Serving (g)	Calories
Raw tomato, medium	123	≈22–26
Raw tomato, 100 g	100	≈18–22
Cherry tomatoes, 1 cup	149	≈27–35
Roma/plum tomato, 1 cup chopped	150	≈30–40
Canned tomato sauce, 100 g	100	≈24–59
Tomato paste, 2 Tbsp	33	≈30–35
Sun-dried tomatoes, 28 g	28	≈60–70

Per 100 g, raw tomatoes sit near the bottom for calories among common produce. If you track daily intake, locking in your daily calorie needs helps the numbers above land in context during meal planning.

What Drives Calorie Differences In Tomatoes

Water swings the meter. Fresh fruit can top 94% water. When simmering or drying pulls water away, grams of carbohydrate per 100 g rise, so calories rise. That is why sauce and paste push higher than raw fruit, even before any oil hits the pan.

Variety And Size

Cherry and grape types are small, with thin skins and high juice. A cup can hold a big pile with little energy. Beefsteak and many heirlooms carry more flesh per slice, so a thick sandwich round can add a few extra calories, though still modest. Roma, also called plum, sits in the middle with fewer seeds and meaty walls, handy for sauce.

Raw Vs. Cooked Vs. Dried

Roasting or simmering drives off steam. Ten minutes in a hot oven will not double calories, but it will tighten the texture. A long reduction for marinara concentrates sugars and acids. Drying jumps far faster. An ounce of sun-dried pieces can deliver three times the energy of an ounce of raw fruit.

Added Ingredients

Oil, cheese, and sugar change the math fast. One tablespoon of olive oil adds about 119 calories on its own. A measured teaspoon adds about 40. A spoon of grated Parmesan adds around 20–25. These add-ons punch up flavor; they also turn a light side into a hearty dish.

Evidence-Based Numbers You Can Trust

Calorie values here line up with public nutrient databases built from lab data. A raw red tomato averages about 18 calories per 100 g, and a cup of cherry tomatoes lands near the high twenties. Canned tomato sauce ranges by brand and recipe. No-salt, no-sugar versions sit near the mid-twenties per 100 g, while richer blends can land near 59 calories per 100 g. You can review those entries in the sources card above, which point to the same federal dataset.

For season tips and storage guidance, the USDA tomato produce page keeps things clear and practical.

How To Count Tomato Calories In Real Meals

Use a simple two-step method that works across salads, pasta, soups, and salsas.

Step 1: Pick The Right Base

If the recipe uses raw fruit, pull from the raw line. If it uses canned sauce or paste, use the pantry line. If you roast or air-fry, stay with the raw number unless you pour in oil. Cooking drives off some water but not enough to swing a home portion wildly.

Step 2: Add The Extras

Count oil and cheese. Track sugar if the sauce calls for it. For oil, multiply teaspoons by about 40 calories. For cheese, measure by tablespoons. Two quick moves keep your log honest.

Worked Examples

Here are plain templates you can adapt without a calculator.

Simple Caprese Side

Start with 150 g of sliced tomato, about 30–35 calories. Add 30 g fresh mozzarella, roughly 85 calories. Drizzle 2 teaspoons olive oil, about 80 calories. Sprinkle basil and salt. Final plate: near 195–205 calories.

Roasted Tomato Sheet Pan

Toss 400 g halved tomatoes with 2 teaspoons olive oil, about 80 calories. Roast at 220°C until edges brown. Total for the pan: tomato 72–88 plus oil 80, so near 150–170 calories. Split across two plates for a light side.

Quick Marinara

Simmer 400 g canned tomato sauce. Stir in 1 tablespoon olive oil, about 119 calories. The sauce brings 96–236 calories depending on brand. Total pot: near 215–355 calories before pasta.

Nutrition Snapshot Beyond Calories

Tomatoes serve fiber, potassium, and vitamin C with minimal sodium in raw form. One cup of cherry tomatoes often carries near 20 mg vitamin C and about 350 mg potassium with only a trace of fat. Sodium climbs when salt is added in canning or at the stove.

Lycopene And Color

The red pigment lycopene sits higher in cooked products where heat breaks cell walls. Oil helps absorption, so a small drizzle can be a smart move from a nutrition angle even if it nudges calories up.

Calorie Math For Common Add-Ins

Use this chart to ballpark totals when you dress tomatoes. Values show typical add-ons per serving and the change they bring.

Preparation	Serving	Estimated Calories
Raw slices, no oil	150 g	≈30–35
Roasted with olive oil	150 g + 1 tsp oil	≈70–80
Skillet cherry tomatoes	150 g + 2 tsp oil	≈110–120
Tomato soup, light	1 cup (240 g)	≈60–120
Tomato soup, creamy	1 cup	≈150–220
Bruschetta topping	100 g + 1 tsp oil	≈80–90

Buying, Storing, And Prep Tips

Choose fruit that feels heavy for its size. Skip soft spots. Keep whole tomatoes at room temp out of direct sun. Use within a few days for peak flavor. Chill after cutting, or when you need to slow ripening.

Rinse under cool water before cutting. A serrated knife keeps skins neat. For salads, salt just before serving so slices stay firm. For sauce, add a pinch of baking soda if acid tastes sharp; it tames the bite without extra sugar.

Smart Swaps And Serving Ideas

Swap tomato slices for part of the cheese on a sandwich to trim energy. Bulk up pasta bowls with roasted halves to lower calories per bite. Use cherry cups as a snack with a spoon of hummus. Blend with cucumber and herbs for a quick chilled soup.

Bottom Line On Tomato Calories

Tomatoes are light on energy and big on flavor. Raw fruit ranges near 18–22 calories per 100 g. Canned sauce spans a wider range based on brand and recipe. Oil, cheese, and drying raise totals. Want more ideas for easy planning? Try our low-calorie foods list for handy picks.