One cup of grape tomatoes (about 149 g) has ~27 calories; 100 g has ~18 calories, and one grape tomato has about 1 calorie.
Calories (Per Cup)
Sugar (Per Cup)
Fiber (Per Cup)
Basic
- Eat raw with a pinch of salt
- Add to lunch boxes
- Pair with light cheese
Zero-prep
Better
- Halve and toss with herbs
- Roast 12–15 min at 200°C
- Splash of balsamic
Fast flavor
Best
- Warm in a skillet for pasta
- Finish with olive oil
- Top grain bowls
Weeknight win
What Counts As A Standard Serving
Nutrition databases commonly use two reference points for raw tomatoes: 100 grams and 1 cup of halves, which is about 149 grams. You’ll see both across trusted datasets because varieties, seasons, and water content nudge the numbers a bit from batch to batch.
For bite-size fruit like these, household measures are handy. A small handful sits near half a cup; a full palm-sized scoop comes close to a cup. When you want precision, weighing 100 grams on a kitchen scale removes guesswork.
Calories By Common Portions
This table pulls together the most used serving sizes for grape tomatoes so you can plan snacks and recipes without mental math.
| Portion | Approx. Weight | Calories |
|---|---|---|
| 1 grape tomato | ~8 g | ~1 kcal |
| 1 ounce | 28 g | ~5 kcal |
| 1/2 cup | ~75 g | ~13 kcal |
| 1 cup (halved) | 149 g | ~27 kcal |
| 100 grams | 100 g | ~18 kcal |
Calorie numbers come from established datasets like MyFoodData and USDA FoodData Central, which list raw tomatoes around 18 kcal per 100 g and 27 kcal per cup. Once you dial in a day’s menu, snacks slot in neatly once you set your daily calorie needs.
Why Numbers Vary From Site To Site
You might see 14–18 kcal per 100 g depending on the dataset. That spread reflects natural differences in water and sugar from variety, growing conditions, and how the lab sample was handled. Cherry types trend a touch sweeter; elongated grapes skew a bit meatier. Both are still low-energy foods.
Serving size also changes the math. Databases define a cup in specific ways: sliced, halved, or whole. A cup of halves packs more fruit than a cup of whole. When a listing says “year-round average,” it pools values across seasons, which helps everyday planning.
Grape Tomato Calories By Size And Serving
Think in three checkpoints: per piece, per 100 grams, and per cup. Per piece is handy for quick snacking; per 100 grams is the best way to compare foods; per cup is the go-to for recipes. Across all three, the count stays low.
Per Piece
One grape tomato lands around a single calorie. A small bag of ten sits in the low-teens unless you add dressing, oil, or cheese. That’s why these are clutch in lunch boxes and road snacks.
Per 100 Grams
At roughly 18 kcal per 100 g, grape tomatoes sit in the same range as standard red tomatoes. This benchmark helps you compare across produce or slot a portion into a calorie budget with ease.
Per Cup
A measured cup of halves (about 149 g) comes in near 27 kcal. You also pick up about 2 g of fiber and ~4 g of natural sugar, plus potassium and a little vitamin C—useful perks for so few calories.
What Changes The Calorie Count
Oil And Dressings
Fat carries 9 calories per gram, so a tablespoon of olive oil adds about 119 calories to any bowl. Toss lightly or use an oil sprayer if you want the flavor without turning a 27-calorie cup into a 150-plus-calorie side.
Roasting And Drying
Heat doesn’t create energy; it removes water. As moisture cooks off, calories per gram climb because sugars concentrate. A tray of roasted tomatoes tastes sweeter for this reason. Keep portions measured when you’re tracking macros closely.
Sauces And Glazes
Honey drizzles, balsamic reductions, or sweet chili sauces push sugar up fast. If you like a glossy finish, stick to a light brush of olive oil and herbs or a squeeze of lemon.
Nutrition Beyond Calories
These tiny fruits supply carotenoids such as lycopene plus small amounts of vitamin C and potassium. Gentle heat with a little oil can make lycopene easier to absorb. If you want the lab-grade view of nutrient compilation, the FoodData Central FAQ explains how values are built.
On a plate, they punch above their size because the energy density is low and the fiber slows how fast you eat. That combo helps portion control without feeling shortchanged.
How Many Fit In A Cup
Pack a cup loosely and you’ll get 15–20 pieces, give or take. Halving lets them nest, so the same volume holds more. For recipes, measuring by weight yields consistency; for snacks, counting pieces keeps things casual and quick.
Smart Ways To Use Them
Simple Snack Box
Pair with a stick of mozzarella, a few almonds, and whole-grain crackers. You’ll get color, crunch, and protein for under 300 calories when portions stay moderate.
Speedy Sheet-Pan Roast
Toss 2 cups of tomatoes with 1 teaspoon of olive oil, pinches of salt and pepper, and roast at 200°C for 12–15 minutes. They collapse into jammy bites that lift grain bowls and eggs.
Bright Pasta Toss
Halve a cup per serving, warm briefly in a skillet with garlic, and finish with parsley and a splash of reserved pasta water. Add grilled chicken or chickpeas if you want more protein.
Comparison With Other Small Tomatoes
Cherry types often taste sweeter and can read a bit higher on sugar. Roma pieces are denser from lower water. On calories, all three sit in the same low bracket when raw. Pick based on texture and how you plan to cook.
Label Reading Tips
When you see a container labeled “10.5 oz,” that’s roughly 300 g. Using the 18 kcal per 100 g benchmark, the whole pack lands near 54 calories—before any oil or dressing touches it.
Net carbs stay modest because fiber trims the total. If you track sodium, raw tomatoes bring almost none; the salt arrives from dressings, marinades, or add-ons like cheese and cured meats.
Per 100 Grams, Per Cup, And In Recipes
Here’s a quick converter you can skim while cooking. It keeps portions grounded whether you snack straight from the clamshell or fold them into a dish.
| Amount | Calories | Notes |
|---|---|---|
| 10 grapes (est.) | ~10–15 kcal | Depends on size |
| 200 g | ~36 kcal | Two generous handfuls |
| 2 cups, halved | ~54 kcal | Great for roasting |
Calorie Math You Can Trust
Two sources give you the backbone here: the public USDA database and the detailed MyFoodData entry for grape tomatoes. Data round to practical numbers, so expect small swings. If you prep them with a teaspoon of oil, add about 40 calories; a tablespoon adds around 119.
Quick Buying And Storage Tips
Picking A Good Pack
Choose firm fruit with glossy skins and no wrinkling. A few green shoulders are fine; soft spots leak fast in the fridge.
Keep Freshness Longer
Store unwashed in a breathable container at cool room temperature for better flavor; refrigerate only when fully ripe or when you need them to last the week. Bring chilled fruit back to room temp for the best taste.
How To Measure Without A Scale
Count pieces when snacking, and use a standard measuring cup when cooking. Halved fruit packs tighter than whole. If you’re building a salad for one, a rounded half-cup pairs well with greens and a light protein while keeping calories lean.
Balanced Ways To Build A Meal
Use tomatoes as the bulky, low-energy base, then add a lean protein and a smart fat. That template works for bowls, tacos, and grain salads without blowing through your daily target.
Want a simple fiber cheat-sheet to round out meals? Try our recommended fiber intake.