How Many Calories Does A Brussels Sprout Have? | Smart Meal Math

Calorie counts for Brussels sprouts swing with size, trim, and cooking style. A tiny sprout might be half the weight of a jumbo one. Water bakes off in the oven; oil adds energy fast. This guide shows simple numbers you can use at the store, in the kitchen, and when logging meals.

Calories In A Brussels Sprout — By Weight And Count

The cleanest way to answer “How many calories does a Brussels sprout have?” is to match the weight. Raw numbers first. A standard sprout sits near 19–22 grams. Using that range, you’ll land in the 8–10 calorie zone per sprout. If you buy loose sprouts, weigh a few on the scale and use the table below to map weight to calories.

Single Sprout (Raw)	Typical Weight	Calories
Small	12–16 g	5–7 kcal
Medium	17–22 g	8–10 kcal
Large	23–30 g	10–13 kcal
Extra-large	31–40 g	13–17 kcal

Prefer grams or cups? Here’s a quick set of anchors many meal trackers use: 100 g raw equals roughly 38–43 calories; 1 raw cup (about 88 g) lands near 38 calories; a cooked half-cup sits near 56 calories. Data vary slightly by source and by the amount of water left after cooking.

You can check the raw and cooked entries in USDA FoodData Central and the USDA produce guide for Brussels sprouts for method tips and serving basics.

Raw Vs Cooked: Per 100 Grams

Raw sprouts show low energy density. Per 100 g, figures cluster near the high 30s to low 40s. Boiling or steaming changes the number per 100 g because water shifts, not because the plant gained energy. Roasting with oil raises the total, since oil brings 120 calories per tablespoon. A tray can look the same size yet land far higher in energy if it’s glossy with oil.

Common Portions In Daily Meals

Many plates carry a cooked half-cup, sometimes a full cup for a bigger meal. That half-cup lines up near 56 calories when sprouts were boiled or steamed and drained. A full cooked cup roughly doubles that. Pan searing with a teaspoon or two of oil per serving pushes the count up fast. The next sections show ways to log those tweaks with confidence.

What Changes Calories When You Cook Sprouts

Trim loss: removing outer leaves and heavy stems shaves a gram or two from each sprout. Water loss: roasting dries the surface, so the same pile weighs less and calories per 100 g rise, even if total energy stayed the same. Added fat: oil, butter, bacon, cheese, and sweet glazes add extra energy that the plant didn’t have.

Oil Math Made Simple

Oil is the big swing. One tablespoon equals 120 calories. If a sheet pan serves four and you use two tablespoons, that’s 60 extra calories per person before any toppings. If you only mist the tray and toss with one teaspoon per person, the bump is closer to 40 calories each. Use a measuring spoon or a spray bottle and you’ll hit the number you planned.

How To Weigh And Count Accurately

Grab ten raw sprouts from the same bag, weigh them together, and divide by ten to get an average. If you see wide swings, sort by size and weigh each group. For cooked batches, weigh the whole pan after cooking, then divide by portions served. If you cook with oil, measure it first so you can assign an exact amount to each plate.

Menu And Label Clues

Restaurant sides listed as “roasted Brussels sprouts” almost always include oil. Many chains portion a side near 150–200 g cooked. That can be 90–250 calories before add-ins, based on how much fat was applied. If the menu mentions glaze, aioli, nuts, bacon, or cheese, add another 20–150 calories.

Sample Servings And Meal Ideas

Weeknight tray: toss trimmed halves with one teaspoon of olive oil per person, salt, and pepper. Roast at high heat until browned. Pair with grilled chicken or a bean bowl. Shaved salad: thinly slice raw sprouts, toss with lemon, apple, toasted seeds, and a spoon of yogurt-mustard dressing. Quick pan sear: cook halves cut-side down in a slick of oil, add a splash of water to steam through, then finish with herbs and lemon zest.

Macro Snapshot

Sprouts lean on fiber and carry a modest protein count for a vegetable. In raw form, carbs take most of the energy, with small amounts from protein and fat. Cooked values shift with moisture and toppings. A cooked half-cup from boiling or steaming often shows near 11 g carbs, around 3 g protein, and under 1 g fat before add-ins.

Nutrient Snapshot Beyond Calories

Alongside the calorie math, sprouts bring vitamin C, vitamin K, folate, and potassium. They fit in the dark-green vegetable group and work well in a mix of produce through the week. The USDA sheet linked above gives storage, prep, and basic use notes that help keep texture and color on point.

How Sprouts Compare With Other Green Sides

Per 100 g raw, broccoli and green beans sit near the mid-30s in calories. Zucchini lands lower, spinach lower still. Sprouts tend to taste richer once browned, which is why cooks lean on oil or cured meats. Use the oil math table to keep that richness in check while still getting the crispy edges most people love.

Quick Reference: Answers To Common Calorie Checks

One raw sprout: 8–10 calories for average sizes. Ten raw sprouts at medium size: 80–100 calories. One raw cup: near 38 calories. Cooked half-cup, boiled or steamed: near 56 calories. A pan with two tablespoons of oil split four ways: add 60 calories to each plate. A tablespoon of grated parmesan on top: add roughly 20 calories.

Add-On	Amount	Extra Calories Per Person
Olive oil	1 tsp	40 kcal
Olive oil	1 tbsp	120 kcal
Bacon bits	1 tbsp	25–30 kcal
Grated parmesan	1 tbsp	20–22 kcal
Balsamic glaze	2 tsp	20–25 kcal

Buying, Storing, And Prepping For Consistent Results

Choose tight, bright green heads with a firm feel. Loose, yellowing leaves mean more trim loss and lower yield. Keep unwashed sprouts in a bag in the fridge crisper. Stalk sprouts keep the best. Before cooking, remove any wilted outer leaves and trim the stem flush; leave enough base so halves hold together on the pan.

Raw, Frozen, And Packaged Sprouts

Fresh crates at the market often carry a mix of sizes and moisture. That nudges weight a little, yet the per sprout math above still holds. Frozen bags use steady sizing and usually print nutrition for 85–90 g or a clean 100 g. After steaming, pour off any water before weighing, since pooled liquid makes gram counts look bigger. If you run into canned sprouts, check labels for drained weight and use that line when logging. Brine changes sodium and adds water, not plant energy, so drained entries keep calorie math straight.

Flavor Boosters With Near-Zero Calories

Sharp acids and spices go a long way without changing your log. Lemon juice, sherry vinegar, red wine vinegar, Dijon mustard without honey, garlic, black pepper, chili flakes, smoked paprika, and parsley keep the number tight. Zest from lemon or orange smells bold and reads bright on the tongue. If you want gloss, thin a teaspoon of reduced balsamic or soy with water so it spreads across the tray. Nuts and seeds change the bite and add energy; spoon them on in measured amounts after cooking so your count stays exact.

Three Quick Counts You Can Copy

1. Desk lunch salad. Two cups of shaved raw sprouts, about 176 g, tossed with apple slices and a squeeze of lemon. Count 75–85 calories for the greens, then add entries for fruit and dressing.
2. Family dinner tray. One kilogram of raw halves roasted with four tablespoons of oil feeds six. The sprouts bring about 380–430 calories in total. The oil brings 480. Split across six plates, that’s near 145–155 per serving from the tray alone.
3. Steamed side for two. Two cooked half-cups, drained, line up near 112 calories for both bowls. Add grilled fish or tofu and you have a light, tidy plate.

Why App Entries Differ

Databases use different lab sets and rounding. One entry shows 38 per 100 g, another 43. Both fit moisture swings. Pick one base entry for raw grams and use it across recipes. When the method changes, adjust with the oil and topping math listed above.

Cooking Methods Side-By-Side

Boiling or steaming keeps calories low and steady because you are not adding fat. Roasting gives deep browning and a sweeter taste as water bakes away; that shift can raise calories per 100 g because the food weighs less at the end. The total energy stays close unless you pour on oil. Air fryers brown quickly; treat them like a small oven and still measure oil. Sauté pans give great color, yet they drink oil if you keep adding splashes. Use a measured teaspoon per person, or build a light pan sauce with stock, lemon, or vinegar to bring moisture without a big bump. Finish with herbs for freshness and a squeeze of citrus for pop now.