Calories in Fennel

27kcal per 1 cup, sliced (87 g)

31 kcal per 100 g · about 1% of a 2,000-kcal day

Raw fennel is crisp with a gentle licorice note, about 27 calories a sliced cup. Roasting mellows it into something sweet and tender for very little cost.

Fennel nutrition facts

NutrientPer 100 gPer 1 cup, sliced
Calories31 kcal27 kcal
Protein1.2 g1 g
Carbs7.3 g6.4 g
Fat0.2 g0.2 g
Fiber3.1 g2.7 g
Sugar3.9 g3.4 g

Where the calories come from

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More vegetables

Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.