Roma tomato calories come to 10 for one tomato (57 g) and 18 per 100 g. The thing to notice is how little portions matter: even a full cup chopped (240 g) is only 43 calories, or 2% of the daily value. Carbs supply 77% of those calories, mostly as mild natural sugars.
10kcal
1 roma tomato · 57 g, red ripe, cooked
18%protein
0.5 gProtein
2 gCarbs
0.1 gFat
How to burn off 10 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
Skip the math. BodyPal counts these calories from your steps and workouts automatically.
Nutrition facts
Red ripe, cooked · per 57 g
Calories
10 kcal
Protein
0.5 g
Carbohydrate
2.3 g
Fat
0.1 g
Saturated fat
0 g
Cholesterol
0 mg
Sodium
6 mg
Potassium
124 mg
Iron
0.4 mg
Source: USDA FoodData Central
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Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Roma tomato: calories, protein and sodium by serving
Percent of daily value uses the FDA reference of 2,000 kcal a day.
Serving
kcal
Protein
Carbs
Fat
Sodium
% DV kcal
1 tomato (57 g)
10
0.5 g
2.3 g
0.1 g
6 mg
1%
2 tomatoes (113 g)
20
1.1 g
4.5 g
0.1 g
12 mg
1%
1 cup chopped (240 g)
43
2.3 g
9.6 g
0.3 g
26 mg
2%
100 g
18
1 g
4 g
0.1 g
11 mg
1%
3 × 1 tomato (57 g)
31
1.6 g
19 mg
5 × 1 tomato (57 g)
51
2.7 g
31 mg
Even a full cup of chopped romas is a 43-calorie add
One roma tomato (57 g) carries 10 calories, 0.5 g of protein and 2.3 g of carbs. Two tomatoes (113 g) land at 20 calories, which is the pair most people slice onto a sandwich or toss into a salad. That still registers as just 1% of the daily calorie value.
Scale up and the numbers stay small. Three tomatoes (171 g) come to 31 calories, and five (285 g) reach 51. A cup of chopped roma (240 g), roughly what a bowl of fresh salsa or a quick pan sauce uses, is 43 calories with 9.6 g of carbs and 1.7 g of fiber.
The practical takeaway: you rarely need a scale for roma tomatoes. Counting whole tomatoes keeps a food log close enough, and BodyPal can log them from a photo if you would rather skip the typing. Your attention is better spent on whatever the tomatoes are cooked in or served with.
Carbs supply 77% of the calories, fat almost none
Per 100 g, a roma tomato has 4 g of carbs, 1 g of protein and 0.1 g of fat. On a calorie basis that splits into 77% carbs, 18% protein and 5% fat. Saturated fat and cholesterol both read 0, so there is nothing to track on the fat side.
Of those 4 g of carbs, 2.5 g are sugars and 0.7 g is fiber. A single tomato holds 1.4 g of sugars and 0.4 g of fiber, which explains the mild sweetness and the modest fiber. A full cup chopped brings that to 6 g of sugars and 1.7 g of fiber.
The 18% protein share looks respectable on paper, but the grams are tiny: 0.5 g per tomato and 2.3 g in a full cup. Treat roma tomatoes as volume, color and acidity on the plate, not as a protein or fiber source. Their real job is adding bulk and flavor for very few calories.
Potassium outweighs sodium by a wide margin
A roma tomato is close to sodium-free on its own. There are 11 mg per 100 g and 6 mg in one tomato, which rounds to 0% of the 2300 mg daily value. Even a full cup chopped (240 g) holds only 26 mg, or 1%.
Potassium is the more interesting row. At 218 mg per 100 g, it sits far above the sodium figure, and it makes a small but real contribution toward the 4700 mg daily value. Several tomatoes across a day add up to a meaningful amount.
If you watch sodium, the tomato itself is never the problem. The salt shaker, a jarred sauce or a salty cheese on top will set that number, so check those labels rather than worrying about the produce.
What you cook them with sets the real total
The figures on this page come from the USDA entry for red ripe tomatoes, cooked. That makes them a good match for roasted, sautéed or stewed romas, the way this meaty, low-moisture variety is most often used. Tomato sauce lands only a little higher at 24 calories per 100 g.
Because the tomato contributes so little, the pan does the heavy lifting. A splash of oil, a handful of grated cheese or a pile of pasta will each outweigh the tomatoes on the calorie side. If you are trimming a recipe, cut there first and keep the tomatoes generous.
For a filling plate, pair romas with a protein such as eggs, beans, chicken or fish, since the tomato brings almost none. Raw in a salad or roasted as a side, they stretch a meal without stretching the total much.
How does roma tomato compare?
Here is how roma tomato stacks up against beefsteak tomato, cherry tomato and tomato sauce, per 100 g and per usual serving.
Verdict: For the fewest calories per bite, roma and beefsteak tie at 18 per 100 g, so choose by texture: roma for sauces and salsa, beefsteak for thick slices. Cherry tomatoes run about 1.5 times higher at 27 per 100 g, yet a 5-tomato handful is still only 13 calories, so none of these will strain a calorie budget.
Roma tomato FAQs
How many calories are in one roma tomato?
About 10 calories for one roma tomato of 57 g. Per 100 g, tomatoes have 18 calories.
Are roma tomatoes good for weight loss?
They are among the lightest foods by weight: 18 calories per 100 g, so a whole cup of chopped tomato comes to 43 calories.
Roma tomato vs beefsteak tomato: which has fewer calories?
Both sit at 18 calories per 100 g. A roma is the smaller fruit, so one roma is about 10 calories while a large beefsteak weighs several times more.
How many carbs and how much sugar are in a roma tomato?
Per 100 g there are 4 g carbs, of which 2.5 g sugars, plus 0.7 g fiber. One 57 g tomato has 2.3 g carbs and 1.4 g sugars.
How many calories are in 2 roma tomatoes?
Two roma tomatoes (113 g) have 20 calories. That pair also brings 4.5 g of carbs, 1.1 g of protein and 0.8 g of fiber, which is about 1% of the daily calorie value.
How many calories are in 100 g of roma tomato?
100 g of roma tomato has 18 calories. That weight carries 4 g of carbs, 1 g of protein, 0.1 g of fat, 2.5 g of sugars and 0.7 g of fiber, a little under two average tomatoes.
How many calories are in several roma tomatoes?
Three roma tomatoes (171 g) come to 31 calories and five (285 g) come to 51. Even at five tomatoes, protein is only 2.7 g, so the count stays low while the volume grows.
How many calories are in a cup of chopped roma tomatoes?
A cup of chopped roma tomatoes (240 g) has 43 calories, about 2% of the daily value. It holds 9.6 g of carbs, 6 g of sugars, 1.7 g of fiber and 26 mg of sodium.
