Broccoli is a nutritional powerhouse, but if you're tracking carbohydrates for keto, low-carb, or diabetic meal planning, you need precise numbers. This calculator lets you determine the total carbs, net carbs, fiber, and sugar in any amount of raw or cooked broccoli — whether you measure by grams, cups, or florets.
Simply enter your serving size, choose the unit and preparation method, and the tool instantly breaks down the macronutrients. You'll also see the net carb count (total carbs minus fiber), which is the figure most low-carb dieters use. Perfect for meal prep, calorie tracking apps, or just satisfying your curiosity about this green veggie.
Use the quick-fill buttons for common serving sizes, or input your exact amount. The calculator works for both raw and cooked broccoli, so you can log your food accurately no matter how you enjoy it.
🥦 Broccoli Carb Calculator
How to Use This Tool
Enter the amount of broccoli you plan to eat, select the unit (grams, cups, florets, or stalk), and choose whether it's raw or cooked. The calculator converts your serving to grams and applies the appropriate nutritional values. For example, if you're following a keto diet, you'll want to focus on the net carbs figure, which subtracts fiber from total carbs because fiber isn't digested like other carbs.
You can also use the quick-fill buttons for common serving sizes like 85 grams (about 3 ounces) or one cup. This is handy when you're logging meals in an app and need a fast estimate.
How It Works
The calculator uses nutrition data from the USDA FoodData Central database. For raw broccoli, per 100 grams, there are approximately 6.64 g of total carbohydrates, 2.6 g of fiber, and 1.7 g of sugar. For cooked (boiled, drained) broccoli, the values are slightly different: 7.18 g total carbs, 3.3 g fiber, and 1.39 g sugar per 100 g. The tool multiplies these per-100g values by your serving size (in grams) to get the final numbers.
Net carbs are calculated as total carbs minus fiber. This is a common approach in low-carb diets because fiber is not fully absorbed by the body. Keep in mind that some people also subtract sugar alcohols, but broccoli contains none.
Worked Examples
Example 1: You eat 1 cup of raw chopped broccoli (about 91 g). Total carbs = 6.64 × 0.91 = 6.04 g. Fiber = 2.6 × 0.91 = 2.37 g. Net carbs = 6.04 − 2.37 = 3.67 g. Sugar = 1.7 × 0.91 = 1.55 g.
Example 2: You eat 1 cup of cooked broccoli (about 156 g). Total carbs = 7.18 × 1.56 = 11.20 g. Fiber = 3.3 × 1.56 = 5.15 g. Net carbs = 11.20 − 5.15 = 6.05 g. Sugar = 1.39 × 1.56 = 2.17 g.
Tips & Best Practices
- Weigh your broccoli raw before cooking for the most accurate carb count, as water absorption can change the weight.
- If you're tracking net carbs, remember that fiber is your friend — broccoli is a great source, helping with digestion and satiety.
- For meal prep, portion out your broccoli in advance and log it once to save time.
- Don't forget that cooking methods matter: steaming or roasting without added carbs keeps the numbers similar, but adding sauces or breading will increase carbs.
Factors Affecting Accuracy
The values are averages from the USDA and can vary slightly based on the specific variety, growing conditions, and cooking time. For example, overcooking can leach some nutrients into the water, but the carb content remains fairly stable. If you need precise numbers for medical reasons, consult a registered dietitian or use a food scale and a reliable nutrition database.
Frequently Asked Questions
Is broccoli keto-friendly? Yes, broccoli is very low in net carbs — about 3.7 g per cup raw — making it an excellent choice for keto and low-carb diets.
Does cooking change the carb content? The total carbs per 100g are slightly higher in cooked broccoli because water is lost, concentrating the nutrients. However, the net carbs per serving are similar when you account for the weight change.
Can I use this for frozen broccoli? Frozen broccoli typically has similar nutritional values to raw, but check the package for any added sauces or seasonings.
What about broccoli rabe or broccolini? These are different vegetables with different carb counts. This calculator is specifically for standard broccoli (Brassica oleracea var. italica).
Additional Resources
For more detailed nutrition data, you can refer to the USDA FoodData Central database. If you're planning a low-carb diet, the Dietary Guidelines for Americans offer general advice on carbohydrate intake. For personalized advice, consult a healthcare professional.