Cauliflower Calorie Calculator
Convert grams, ounces, cups, florets, or a whole head of cauliflower into calories, protein, carbs, fiber, and net carbs using USDA reference values.
Written by Victura Nutrition TeamReviewed by Victura Editorial ReviewLast updated Oct 13, 2026
Quick answer
Raw cauliflower has about 25 calories per 100 g (3.5 oz). One cup of chopped florets (107 g / 3.8 oz) is about 27 calories, and a medium head (575 g / 20 oz) works out to roughly 144 calories before any oil, butter, or sauce is added.
Convert grams, ounces, cups, florets, or a whole head of cauliflower into calories, protein, carbs, fiber, and net carbs using USDA reference values.
Key takeaways
- Raw cauliflower has about 25 calories per 100 g (3.5 oz).
- One cup of chopped florets (107 g / 3.8 oz) is about 27 calories.
- Swapping 1 cup of white rice for cauliflower rice saves about 180 calories.
- Net carbs are about 3 g per 100 g, so it fits keto plans.
- Oil, butter, and cheese usually add more calories than the cauliflower itself.
Cauliflower Calorie Calculator: How the Numbers Work
Research-backedHow the calculator works
The cauliflower calorie calculator turns any amount of cauliflower into calories and macros using USDA FoodData Central reference values for raw cauliflower. You can enter weight in grams or ounces, volume in cups of chopped florets, a count of florets, or the size of a whole head. Results scale linearly, so doubling the amount doubles every number.
The formula behind the tool is simple:
Calories = grams ÷ 100 × 25 kcal
Inputs the calculator accepts:
- Grams or ounces of florets and tender stems
- Cups of chopped florets (1 cup = 107 g / 3.8 oz)
- Floret count (1 average floret ≈ 13 g / 0.5 oz)
- Whole head size (small ≈ 265 g / 9.4 oz, medium ≈ 575 g / 20 oz, large ≈ 850 g / 30 oz)
Treat the output as a solid estimate rather than a lab measurement, because trim, core, and variety shift the weight of a cup by roughly 10 percent in either direction. Rounding to the nearest calorie is accurate enough for everyday tracking.
Reference values per 100 g (3.5 oz)
Raw cauliflower, USDA reference values per 100 g (3.5 oz):
- Calories: 25 kcal
- Protein: 1.9 g
- Fat: 0.3 g
- Carbohydrate: 5.0 g
- Fiber: 2.0 g
- Net carbs (total carbs minus fiber): 3.0 g
- Sugars: 1.9 g
- Water: about 92 g
Micronutrient highlights per 100 g (3.5 oz):
- Vitamin C: 48.2 mg, roughly half the daily value
- Vitamin K: 15.5 mcg
- Folate: 57 mcg
- Potassium: 299 mg
- Calcium 22 mg, magnesium 15 mg, phosphorus 44 mg
One cup of chopped raw florets (107 g / 3.8 oz) delivers about 27 calories, 2.0 g protein, 5.4 g carbs, 2.1 g fiber, and 3.2 g net carbs. For the full nutrient panel, see the cauliflower nutrition guide.
Worked examples in grams, cups, ounces, and heads
The table below shows how common entries convert. Every portion is listed in grams and US household units, so you can match whatever measure you have on hand.
| Input | Example value | Result |
|---|---|---|
| Grams of raw florets | 150 g (5.3 oz) | 38 kcal, 2.9 g protein, 7.5 g carbs, 3.0 g fiber, 4.5 g net carbs |
| Ounces of raw florets | 3 oz (85 g) | 21 kcal, 1.6 g protein, 4.3 g carbs, 1.7 g fiber |
| Cups of chopped florets | 1 cup (107 g / 3.8 oz) | 27 kcal, 2.0 g protein, 5.4 g carbs, 2.1 g fiber, 3.2 g net carbs |
| Individual florets | 6 florets (about 78 g / 2.8 oz) | 20 kcal, 1.5 g protein, 1.6 g fiber |
| Medium head, raw | 575 g (20 oz) | 144 kcal, 11 g protein, 28.8 g carbs, 11.5 g fiber |
| Cauliflower rice, cooked | 1 cup (107 g / 3.8 oz) | 25 kcal, 1.9 g protein, 2.8 g net carbs |
To read the output, start with calories and net carbs, since those drive most tracking decisions. Protein and fiber tell you how filling the portion will be. Cross-check a full day of intake with the Victura calorie calculator.
Key takeaway: One cup of chopped raw cauliflower (107 g / 3.8 oz) provides about 27 calories and 3.2 grams of net carbs.
Raw vs cooked: does cooking change the calories?
Cooking does not create or destroy calories, but it changes water content and often adds fat. Boiled or steamed cauliflower lands near 23 kcal per 100 g (3.5 oz) because the florets absorb water. Roasted florets lose water and concentrate slightly, typically reaching 30 to 40 kcal per 100 g (3.5 oz) before any oil is counted.
Added fat is the real variable:
- 1 teaspoon of oil adds about 40 kcal
- 1 tablespoon of oil adds about 120 kcal
- 1 tablespoon of butter adds about 100 kcal
- 1/4 cup of cheese sauce adds roughly 100 to 150 kcal
Frozen cauliflower behaves like fresh: about 25 kcal per 100 g (3.5 oz) raw and about 23 kcal cooked. Fresh riced cauliflower is sold raw, so use raw weights when you log it straight from the bag.
Cauliflower vs cauliflower rice vs white rice
The swap most people are searching for is rice. The comparison below uses USDA reference values on a per-100 g basis, with a per-cup row for real-world portions.
| Nutrient | Cauliflower, raw | Cauliflower rice, cooked | White rice, cooked |
|---|---|---|---|
| Calories | 25 kcal | 23 kcal | 130 kcal |
| Calories per cup | 27 kcal (1 cup chopped, 107 g / 3.8 oz) | 25 kcal (1 cup, 107 g / 3.8 oz) | 205 kcal (1 cup, 158 g / 5.6 oz) |
| Protein | 1.9 g | 1.8 g | 2.7 g |
| Fat | 0.3 g | 0.3 g | 0.3 g |
| Carbohydrate | 5.0 g | 4.6 g | 28.2 g |
| Fiber | 2.0 g | 2.0 g | 0.4 g |
| Net carbs | 3.0 g | 2.6 g | 27.8 g |
| Key vitamins | Vitamin C 48.2 mg, vitamin K 15.5 mcg, folate 57 mcg | Vitamin C falls during cooking (retention varies by method and time), folate about 40 mcg | Enriched thiamin, niacin, folate about 58 mcg |
| Key minerals | Potassium 299 mg, calcium 22 mg, magnesium 15 mg | Potassium about 200 mg, calcium about 16 mg | Potassium 35 mg, magnesium 12 mg, fortified iron 1.2 mg |
| Glycemic index | Not established, estimated very low (about 15) | Very low (about 15, limited data) | About 73 |
| Glycemic load per cup | Under 1 | Under 1 | About 32 |
| Pros | Very low calorie, high fiber and vitamin C, large volume per portion | Rice texture for a fraction of the carbs, quick to cook | Cheap, shelf stable, quick energy, widely available |
| Cons | Sulfur smell when overcooked, can be bland without seasoning | Releases water, needs a dry pan, does not hold sauce like rice | High glycemic load, low fiber, easy to overeat |
| Best for | Volume eating, keto plates, low-calorie sides | Low-carb and keto rice swaps, diabetic-friendly meals | Athletes, high-energy needs, budget meals |
A cup-for-cup swap from white rice to cauliflower rice saves roughly 180 calories and about 40 g of net carbs per cup (about 25 g of net carbs per 100 g / 3.5 oz of each food). The trade-off is texture and satiety from starch, so many people mix half rice and half cauliflower rice when they start.
Using your number: weight loss, keto, and blood sugar
At 25 kcal per 100 g (3.5 oz), cauliflower is one of the lowest-calorie vegetables you can build a plate around. Two cups of chopped florets (214 g / 7.5 oz) come to about 54 calories, which leaves plenty of room for protein and a measured fat serving.
How the numbers map to common goals:
- Weight loss: fill half the plate with cauliflower and other non-starchy vegetables, then add protein.
- Keto: at about 3 g net carbs per 100 g (3.5 oz), it fits daily carb targets comfortably.
- Blood sugar: no reliable glycemic index has been published, but the estimated value is very low and the glycemic load per cup is under 1.
Published GI data for cauliflower is limited, so treat any single GI figure as provisional. If you manage diabetes or take glucose-lowering medication, use these numbers as general education and confirm portion targets with your care team. More low-carb options are listed in the Victura keto food list.
What Victura Members Actually Log
Community insightWhat members log most often
Anonymized Victura meal logs show cauliflower rice far more often than plain steamed florets. The most common swap is trading 1 cup of cooked white rice (158 g / 5.6 oz, about 205 calories) for 1 cup of cauliflower rice (107 g / 3.8 oz, about 25 calories), a saving of roughly 180 calories per plate. The second most logged entry is roasted florets tossed in oil, where the oil supplies most of the calories.
Whole heads are popular for meal prep because a medium head (575 g / 20 oz) yields about six 1-cup servings. Members who buy florets by the bag tend to log closer to 1.5 cups per sitting (about 160 g / 5.6 oz and 40 calories) than the 1-cup starting point.
Portion habits that work
Members who report the steadiest tracking share a few simple habits:
- Weigh florets once or twice to learn what 100 g (3.5 oz) looks like, then eyeball later portions.
- Keep a dry cup measure nearby: 1 cup chopped florets is 107 g (3.8 oz) and about 27 calories.
- Log butter, oil, cheese, and creamy sauces on their own line, not inside the vegetable entry.
- Build half the plate from cauliflower or another non-starchy vegetable, then add protein.
- For rice swaps, cook cauliflower rice in a dry nonstick pan first so it releases water instead of steaming.
- Freeze cooked florets in 1-cup portions for fast weeknight logging.
Where members get stuck
Two habits quietly erase the low-calorie advantage. First, cheese sauce: a quarter cup can add 100 to 150 calories, more than four cups of plain cauliflower. Second, heavy-handed roasting, since two tablespoons of olive oil adds about 240 calories to a tray of florets.
Members who fix this usually switch to a measured teaspoon of oil (about 40 calories), an air fryer, or a dry pan with a spritz of cooking spray. Others lean on acid and spice instead of fat: lemon, garlic, smoked paprika, or a vinegar-based dressing keeps flavor high and calories low. If you track other vegetables the same way, the broccoli calorie calculator uses an identical method.
Tip: Log the oil, butter, or cheese separately so your cauliflower calorie count stays honest.
References
- USDA FoodData Central: Cauliflower, raw (SR Legacy reference values)(usda)
- USDA FoodData Central: Rice, white, long-grain, regular, cooked, enriched(usda)
- FDA: Daily Value on the Nutrition and Supplement Facts Labels(fda)
- NIH Office of Dietary Supplements: Vitamin C fact sheet for consumers(nih_ods)
- Harvard T.H. Chan School of Public Health: Vegetables and Fruits(harvard)
- Mayo Clinic: Weight loss - Feel full on fewer calories(mayo_clinic)
- PubMed: Glycemic index and glycemic load of vegetables (peer-reviewed literature)(pubmed)
Frequently asked questions
People also ask
How many calories are in cauliflower?
Raw cauliflower has about 25 calories per 100 g (3.5 oz). One cup of chopped florets (107 g / 3.8 oz) is about 27 calories, and a medium head (575 g / 20 oz) works out to roughly 144 calories before any oil, butter, or sauce is added.
How many calories are in 1 cup of cauliflower?
About 27 calories for 1 cup of chopped raw florets (107 g / 3.8 oz). Boiled or steamed cauliflower is slightly lower at roughly 25 calories per cup because it absorbs water. If you mash it with butter or cream, the added fat is what raises the total.
Does cooking cauliflower change its calorie count?
No, heat does not add calories. Boiling and steaming add water, which lowers the value to about 23 calories per 100 g (3.5 oz). Roasting drives off water and concentrates the florets slightly, and any oil used adds roughly 120 calories per tablespoon, so track the cooking fat.
Is cauliflower good for weight loss?
It fits weight-loss plans well. At about 25 calories per 100 g (3.5 oz) with 2 g of fiber and roughly 92 percent water, a large portion fills the plate for very few calories. Replacing 1 cup of cooked white rice with 1 cup of cauliflower rice saves about 180 calories.
How many calories are in cauliflower rice compared to white rice?
One cup of cooked cauliflower rice (107 g / 3.8 oz) has about 25 calories and roughly 2.8 g of net carbs, while 1 cup of cooked white rice (158 g / 5.6 oz) has about 205 calories and about 44 g of net carbs. That is a difference of roughly 180 calories and about 40 g of net carbs per cup, or about 25 g of net carbs per 100 g (3.5 oz) of each food.
Is cauliflower keto friendly?
Yes. Raw cauliflower has about 3 g of net carbs per 100 g (3.5 oz) and about 3.2 g per cup of chopped florets, which fits a strict keto plan. Cauliflower rice is a standard low-carb swap, though breading, sauces, and cheese can change the carb count.
How much cauliflower is one serving?
A practical serving is 1 cup of chopped raw florets (107 g / 3.8 oz), which is about 27 calories. Cooked, that equals roughly 1 cup of florets or cauliflower rice. A medium head (575 g / 20 oz) yields about six of those servings.
How many net carbs are in cauliflower?
Raw cauliflower has about 3 g of net carbs per 100 g (3.5 oz), calculated as 5.0 g total carbohydrate minus 2.0 g fiber. One cup of chopped florets (107 g / 3.8 oz) has about 3.2 g of net carbs, and 1 cup of cooked cauliflower rice has roughly 2.8 g.
How many calories are in a whole head of cauliflower?
A medium head (575 g / 20 oz) has about 144 calories, 11 g protein, 28.8 g carbs, and 11.5 g fiber. A small head (265 g / 9.4 oz) is about 66 calories and a large head (850 g / 30 oz) is about 213 calories, before any oil, butter, or sauce is added.
Is cauliflower rice lower in calories than white rice?
Yes. One cup of cooked cauliflower rice (107 g / 3.8 oz) has about 25 calories and 2.8 g net carbs, while 1 cup of cooked white rice (158 g / 5.6 oz) has about 205 calories and 44 g net carbs. That is a saving of roughly 180 calories and about 40 g of net carbs per cup.
How we review this guide
- Written by
- Victura Nutrition Team
- Reviewed by
- Victura Editorial Review
- Reference sources
- 9
- Last updated
- Oct 13, 2026
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