Broccoli is a nutrient-dense cruciferous vegetable, but for those following low-carb or ketogenic diets, understanding its net carb content is essential. Net carbs are calculated by subtracting fiber from total carbohydrates, since fiber is not digested and does not raise blood sugar. This calculator helps you quickly determine the net carbs in any serving of broccoli — raw, cooked, or frozen — so you can stay on track with your macros.
Whether you are meal prepping, tracking daily carb limits, or simply curious about the carbohydrate profile of this green powerhouse, our tool provides accurate results based on standard USDA nutrition data. Simply enter the serving size, select the preparation type, and get instant net carb values. Perfect for keto dieters, diabetics, and anyone monitoring their carbohydrate intake.
🥦 Broccoli Net Carbs Calculator
How to Use This Tool
Using the Broccoli Net Carbs Calculator is straightforward. Start by entering the serving size in grams, ounces, or cups. The default is 100 grams, which is a common reference portion. Next, select the preparation method — raw, cooked (boiled and drained), or frozen (unprepared). Each preparation has slightly different carbohydrate and fiber values due to water content and cooking effects. Click "Calculate Net Carbs" to see your result. The breakdown shows total carbohydrates, dietary fiber, and the net carbs. Use the quick-fill buttons for common serving sizes like 85 g (3 oz) or 1 cup (148 g).
Formula Explained
Net carbs are calculated using the formula: Net Carbs = Total Carbohydrates − Dietary Fiber. Fiber is subtracted because it is not digested by the human body and does not contribute to blood sugar spikes. The values for total carbs and fiber per 100 grams come from the USDA FoodData Central database. For raw broccoli, total carbs are 6.64 g and fiber is 2.6 g per 100 g. For cooked broccoli (boiled, drained), total carbs are 7.18 g and fiber is 3.3 g per 100 g. For frozen broccoli (unprepared), total carbs are 5.35 g and fiber is 2.6 g per 100 g. The calculator multiplies these per-100g values by your serving size to give accurate results.
Worked Examples
Example 1: You eat 1 cup of raw chopped broccoli (148 g). Total carbs = 6.64 × 1.48 = 9.83 g. Fiber = 2.6 × 1.48 = 3.85 g. Net carbs = 9.83 − 3.85 = 5.98 g.
Example 2: You have 200 g of cooked broccoli. Total carbs = 7.18 × 2 = 14.36 g. Fiber = 3.3 × 2 = 6.6 g. Net carbs = 14.36 − 6.6 = 7.76 g.
Example 3: A 3 oz (85 g) serving of frozen broccoli. Total carbs = 5.35 × 0.85 = 4.55 g. Fiber = 2.6 × 0.85 = 2.21 g. Net carbs = 4.55 − 2.21 = 2.34 g.
Tips for Accurate Tracking
For the most accurate net carb calculation, always weigh your broccoli with a kitchen scale rather than relying on volume measurements. Chopped broccoli density can vary — 1 cup can range from 140 g to 160 g depending on how finely it is chopped. If you are tracking for keto, remember that net carbs under 20-50 g per day is typical. Broccoli is a low-carb friendly vegetable, but portion sizes still matter. Also note that cooking methods like steaming or roasting without added water may have slightly different values; the cooked option here is for boiled and drained broccoli.
Frequently Asked Questions
Is broccoli keto-friendly? Yes, broccoli is very keto-friendly. A 100 g serving of raw broccoli has only about 4 g of net carbs, making it an excellent choice for low-carb diets.
Why does cooked broccoli have more net carbs than raw? Cooking reduces water content, concentrating the nutrients. So per 100 g, cooked broccoli has slightly higher total carbs and fiber, but the net carb difference is small.
Can I use this calculator for other vegetables? This calculator is specifically calibrated for broccoli. For other vegetables, try our Cabbage Carbs Calculator or Cauliflower Fiber Calculator.
Are the values for organic broccoli different? The USDA data does not distinguish between organic and conventional for macronutrients. The carb and fiber content is essentially the same.
Reference Data
| Preparation | Total Carbs (g/100g) | Fiber (g/100g) | Net Carbs (g/100g) |
|---|---|---|---|
| Raw | 6.64 | 2.6 | 4.04 |
| Cooked (boiled, drained) | 7.18 | 3.3 | 3.88 |
| Frozen, unprepared | 5.35 | 2.6 | 2.75 |
Data sourced from USDA FoodData Central.