Calorie data · Vegetables← All foods

How many calories in
fennel?

Fennel comes in at 31 calories per 100g. A more substantial veg by calorie content.

31
kcal · 100g
1.2g
Protein
7.3g
Carbs
0.2g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical fennel serving translates in your tracker:

Serving
Calories
Protein
3 oz (85g)
26 kcal
1.0g
4 oz (113g)
35 kcal
1.4g
1 cup (~150g)
47 kcal
1.8g
Track this food

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FAQ

Quick answers.

How many calories in fennel?

Fennel has approximately 31 calories per 100g. A typical serving — 3 oz (85g) — comes in at 26 calories.

How much protein is in fennel?

1.2g of protein per 100g. That puts fennel at roughly 3.9g of protein per 100 calories — a useful lens when comparing to other vegetables sources.

How do I log fennel accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is fennel good for weight loss?

It depends on your overall calorie target. Fennel is naturally low-calorie at 31 kcal per 100g, so it's easy to fit into a deficit.