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

Fennel calories by serving size

ServingCaloriesProteinCarbsFat
1 oz (28 g)9 kcal0.3 g2.1 g0.1 g
50 g16 kcal0.6 g3.7 g0.1 g
1 cup, sliced (87 g)27 kcal1 g6.4 g0.2 g
100 g31 kcal1.2 g7.3 g0.2 g
200 g62 kcal2.4 g14.6 g0.4 g
250 g78 kcal3 g18.3 g0.5 g

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