How Many Calories a Cup Of Broccoli? | A Realistic Look

One cup of chopped raw broccoli has roughly 31 calories, while a cup of cooked, drained broccoli contains about 55 calories — the difference comes.

Broccoli has a reputation as the vegetable you’re supposed to eat, and the calorie count is part of that story. People often assume a cup of broccoli fits neatly into any diet without thinking twice, and the numbers mostly back that up.

But the exact answer to how many calories a cup of broccoli contains depends on whether you’re eating it raw or cooked, how fine you chop it, and whether you’re measuring florets alone or including the stalk. Here is the breakdown by preparation method.

Raw Versus Cooked Broccoli Calories

The calorie difference between raw and cooked broccoli is small but real. A cup of raw, chopped broccoli has about 31 calories, as tracked by the broccoli protein content data from NC State Extension. A cup of cooked, boiled, drained, and unsalted chopped broccoli jumps to roughly 55 calories.

That increase does not come from added fat or sauces. Cooking causes the broccoli’s cell walls to soften and some water to evaporate, so you get more broccoli matter per cup. The vegetable itself is denser after cooking, so a cup holds more total food.

If you steam rather than boil, the calorie count stays closer to the raw value because less water is absorbed. For most practical purposes, the difference between raw and cooked is negligible — you are looking at about 25 extra calories per cup either way.

Why People Focus on Broccoli Calories

Anyone tracking calorie intake for weight management quickly notices that a full cup of broccoli barely registers compared to other foods. That makes it appealing — a large volume of food with very few calories.

• Volume eating: Broccoli’s high water and fiber content means you can eat a satisfying bowlful for around the same calories as a single cookie. The broccoli blood sugar regulation article from Ufl notes that the fiber also helps satisfy hunger, which can support weight management.
• Nutrient density: Those 31 calories come packed with vitamin C, vitamin K, folate, and fiber. A single cup provides more than the daily recommended vitamin C intake for most adults.
• Carb counting: With about 6 grams of carbs and 2.4 grams of fiber per raw cup, the net carbs land around 3.6 grams, making it a popular choice for low-carb patterns.
• No guilt factor: Broccoli is not the sort of food that triggers calorie worry. It is essentially a free addition to meals for most people, within the context of a balanced diet.

The real question people have is usually not the number itself, but whether they can treat broccoli as a calorie-free backdrop to other foods. The honest answer is yes — up to the point where cooking methods add butter, oil, or cheese sauce, which change the calorie profile dramatically.

What a Cup of Broccoli Really Looks Like

A “cup” as a serving size can vary quite a bit depending on how you chop it. Fine dice packs more broccoli into the same volume measure, which slightly raises the calorie count per cup. Rough florets leave more air space, bringing the count a bit lower.

The standard reference for a cup is broccoli that has been chopped into pieces about the size of a fingertip. That is roughly the serving you get from half of a medium head of broccoli. In weight terms, a cup of raw chopped broccoli weighs about 3.1 ounces (88 grams).

Roasting or stir-frying cranks the calorie count upward because the added fat sticks to the florets. A tablespoon of olive oil by itself adds about 120 calories. If you are using broccoli to stay within a specific calorie target, track the cooking fat separately.

How Broccoli’s Nutrition Compares to Other Vegetables

Broccoli sits in the middle of the low-calorie vegetable range. It is not quite as low as celery or cucumber, but it offers far more nutrition per calorie than those options. The trade-off is worth it for most people.

1. Broccoli vs. spinach: A cup of raw spinach has only 7 calories, but you get less volume and less vitamin C per serving than from broccoli.
2. Broccoli vs. cauliflower: Very similar — cauliflower has about 25 calories per raw cup. Broccoli edges ahead in vitamin K and vitamin C content.
3. Broccoli vs. bell pepper: A cup of chopped raw bell pepper has about 30 calories and loads of vitamin C. Broccoli brings more fiber and vitamin K to the table.

None of these vegetables are high-calorie foods. The real choice comes down to which nutrients you want more of in your diet. Broccoli’s fiber and vitamin K profile make it especially useful for people focused on digestion and bone health.

Does Cooking Destroy Broccoli’s Nutrients

Cooking inevitably reduces some water-soluble vitamins, particularly vitamin C, which is sensitive to heat and water. The University of Rochester Medical Center notes that a cup of cooked broccoli still retains substantial amounts of vitamin C and provides 1.86 grams of protein, along with 0.32 grams of fat and the same core calories mentioned earlier.

The trade-offs matter. Cooking destroys some vitamin C but also softens the fiber structure, making the vegetable easier to chew and digest. The Broccoli Blood Sugar Regulation benefits noted by Ufl still apply — the fiber and antioxidants survive the cooking process well enough to confer measurable effects.

Research from Oregon State University suggests that the health benefits of broccoli come from the whole food rather than from isolated supplements, because the nutrients work together. That means the form you eat — raw, steamed, or lightly boiled — matters less than eating it consistently in the first place.

The Bottom Line

A cup of broccoli — raw or cooked — fits easily into nearly any eating pattern. The raw version gives you about 31 calories with a vitamin C punch that outstrips an orange. The cooked version offers more density per cup and the same fiber and antioxidants, at roughly 55 calories. Both are nutrient-dense choices that support weight management and blood sugar regulation.

If your meal plan calls for a specific calorie target, measure your broccoli by weight or by volume before cooking, and account for any oil or butter added during preparation. A registered dietitian can help you fit a serving of broccoli into your daily calorie goal while balancing the rest of your plate.