Calories in tomatoes
A raw ripe tomato has 18 kcal (75 kJ) per 100 g, and canned tomatoes have 16 kcal (67 kJ). They are among the lightest foods you can log.
Updated 21 October 2026. Sources named on the page.
Key factCalories in tomatoes is 18 kcal per 100 g fresh, 16 canned (75 kJ per 100 g fresh).
- Fresh and canned tomato per 100 g
- Cherry, roma, large and chopped serves
- Fibre, sugar and sodium, which are the numbers that move
- Where the numbers come from
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Calories in tomatoes, per 100 g and per serve
Per 100 g of: Tomatoes, red, ripe, raw, year round average; and Tomatoes, red, ripe, canned, packed in tomato juice.
Per 100 g
| Per 100 g | kcal | kJ | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| tomato (fresh) | 18 | 75 | 0.9 g | 0.2 g | 3.9 g |
| tomato (canned) | 16 | 67 | 0.8 g | 0.3 g | 3.5 g |
tomato next to similar foods, per 100 g
| Food | kcal | kJ | Protein | Fat |
|---|---|---|---|---|
| Cucumber (raw) | 15 | 63 | 0.7 g | 0.1 g |
| Capsicum, red (raw) | 26 | 109 | 1 g | 0.3 g |
| Zucchini (raw) | 17 | 71 | 1.2 g | 0.3 g |
| Carrot (raw) | 41 | 172 | 0.9 g | 0.2 g |
| Banana | 89 | 372 | 1.1 g | 0.3 g |
Common serves
| Serve | Weight | kcal | kJ | Protein | Fat |
|---|---|---|---|---|---|
| One cherry tomato | 17 g | 3 kcal | 13 kJ | 0.1 g | 0 g |
| One Italian (roma) tomato | 62 g | 11 kcal | 47 kJ | 0.5 g | 0.1 g |
| One large tomato | 182 g | 33 kcal | 137 kJ | 1.6 g | 0.4 g |
| A cup of chopped tomato | 180 g | 32 kcal | 136 kJ | 1.6 g | 0.4 g |
| A 190 g can, drained or not | 190 g | 30 kcal | 127 kJ | 1.5 g | 0.5 g |
Sources: USDA FoodData Central SR Legacy, April 2018, fdc 170457 and fdc 170051
Values for tomato vary by brand and how it is cooked. Check the pack. General information, not medical advice.
Why tomatoes barely register
Tomatoes are mostly water, so a large one is only a few dozen calories. The bigger story is in what goes with them: oil, cheese, bread and sauce.
Canned is about the same, with more salt
The calories hardly change when tomatoes go into a can. What does change is sodium, which is more than twenty times higher in the canned figure here. If you watch salt, the can is where to look.
Tomato sauce is a different food
Ketchup and pasta sauce are listed separately in the food planner because sugar and oil are added. Do not use the tomato row for them.
Cooking tomatoes down
Simmering drives off water, so a thick pasta sauce made from tomatoes has more calories per 100 g than the tomatoes you started with, while the whole pot holds the same total. For a big batch, weigh the pot, divide by weight into serves and log by serve.
Skin, seeds and fibre
Most of the fibre in the table comes from the skin and seeds, which is one reason a whole tomato is more filling than the same amount of juice. Juice and passata are separate foods in a food database, so do not use these rows for them.
Cherry, roma and truss
The varieties are close in calories, but they differ in water and size. Cherry tomatoes are sold by the punnet and eaten by the handful, so counting them by number is easier than by weight. A roma is meatier and a truss tomato is juicier, and neither changes the log in a way that matters.
Tomatoes in a meal
Where tomato matters is the portion of what it sits with. A salad with a few slices of tomato and a generous pour of dressing is mostly dressing by calories. Log the dressing by the spoon and the tomato by the piece and the picture is clear.
Questions
How many calories are in a medium tomato?
A medium Italian tomato of about 62 g is about 11 kcal. A large one of 182 g is about 33 kcal.
Are cherry tomatoes lower in calories?
Per 100 g they are about the same as other tomatoes. They look lower because each one is tiny, around 17 g.
How many calories are in a can of tomatoes?
A 190 g can is about 30 kcal, plus whatever you cook it in.
Which has more fibre, fresh or canned tomato?
In this table canned tomatoes show 1.9 g of fibre per 100 g and fresh show 1.2 g, so the can is higher per weight. Brands differ, so check the label.
How many calories are in a cup of cherry tomatoes?
A cup of about 149 g is roughly 27 kcal, or 112 kJ.
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