TempoLife › Calorie database › Vegetables › Fennel bulb
Fennel bulb calories and nutrition facts
100 grams of fennel bulb contains 31 calories, with 1.2 g of protein, 7.3 g of carbohydrate and 0.2 g of fat. It provides 3.1 g of fiber and 3.9 g of sugar per 100 g. Most of its calories come from carbohydrate.
Where the calories come from
Protein 13% Carbs 82% Fat 5%
How fennel bulb compares
Per 100 g, against the closest vegetables in this database.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Fennel bulb | 31 kcal | 1.2 g | 7.3 g | 0.2 g |
| Red cabbage, raw | 31 kcal | 1.4 g | 7.4 g | 0.2 g |
| Canned beets, drained | 31 kcal | 0.9 g | 7.2 g | 0.1 g |
| Leeks, cooked | 31 kcal | 0.8 g | 7.6 g | 0.2 g |
| Tomato sauce with tomato tidbits, canned | 32 kcal | 1.3 g | 7.1 g | 0.4 g |
Nutrition facts for fennel bulb
| Nutrient | Per 100 g |
|---|---|
| Calories | 31 kcal |
| Protein | 1.2 g |
| Carbohydrate | 7.3 g |
| Fat | 0.2 g |
| Fiber | 3.1 g |
| Sugar | 3.9 g |
| Saturated fat | 0.1 g |
| Salt | 0.1 g |
Print an EU-style nutrition label for fennel bulb — per 100 g and per portion.
Vitamins and minerals in fennel bulb
Per 100 g, highest share of the Daily Value first. %DV = the adult Daily Value (FDA reference). USDA reference data — not medical advice.
| Nutrient | Per 100 g | %DV |
|---|---|---|
| Vitamin K | 62.8 µg | 52% |
| Vitamin C | 12 mg | 13% |
| Potassium | 414 mg | 9% |
| Copper | 0.07 mg | 8% |
| Manganese | 0.19 mg | 8% |
| Vitamin A | 48 µg | 5% |
| Calcium | 49 mg | 4% |
| Iron | 0.73 mg | 4% |
See the richest foods per nutrient in the nutrient toplists.
Calories in common fennel bulb servings
How many calories in a portion of fennel bulb — reference serving estimates with the gram weight shown.
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 cup, sliced (87 g) | 27 kcal | 1 g | 6 g | 0 g |
| 100 g (100 g) | 31 kcal | 1 g | 7 g | 0 g |
| 1 bulb (234 g) | 73 kcal | 3 g | 17 g | 0 g |
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Frequently asked questions
How many calories are in fennel bulb?
Fennel bulb has 31 calories per 100 grams.
How much protein is in fennel bulb?
Fennel bulb contains 1.2 g of protein per 100 g.
How much sugar is in fennel bulb?
Fennel bulb contains 3.9 g of sugar per 100 g. Nutrition values are reference figures; brands and preparation change the real amount, so weigh and log what you actually eat.
Is fennel bulb low in carbs?
Yes by the numbers: Fennel bulb has 7.3 g of carbohydrate per 100 g. People following low-carb or keto approaches often include foods in this range — portion size and your own plan still decide.
How much fiber does fennel bulb have?
Fennel bulb has 3.1 g of fiber per 100 g. Reference intakes for adults are around 25-30 g of fiber per day, so it contributes meaningfully.
Are these fennel bulb calories exact?
No. These are per-100-gram reference values from the USDA FoodData Central SR Legacy source family. Portion size, ripeness, cut and cooking method all change the real number, so treat them as an estimate and log your own portion.
Related foods
Source: USDA FoodData Central SR Legacy #169385 (2018-04 release). US Government work — public domain in the United States. Reference values per 100 g edible portion.
