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How many calories in French Onion Soup?
A classic French dish made with caramelized onions, melted cheese, and broth.
Per 100 g
90 kcal
1 cup
215 kcal
(240 g)
| Protein | Carbs | Fat |
|---|---|---|
| 3 g / 100g | 10 g / 100g | 4 g / 100g |
In numbers
Where the calories come from
Protein 14% · Carbs 45% · Fat 41%
Share of energy: 4 kcal per gram of protein and carbs, 9 kcal per gram of fat.
- 1 cup (240 g, 215 kcal) is 11% of a 2,000 kcal day. 2,000 kcal is the reference day used on nutrition labels, not a personal target.
- Burning 1 cup takes about 52 min of brisk walking. Estimate for a 70 kg adult walking briskly (about 4 kcal a minute).
Compared with similar foods
French Onion Soup is number 1 of 6 by calories per 100 g, lowest first. The similar foods average 170 kcal per 100 g.
| Food | kcal / 100 g | Protein / 100 g |
|---|---|---|
| French Onion Soup | 90 | 3 g |
| Crunchy Vegetable Sushi | 140 | 3 g |
| Savory Lentil Shepherd's Pie | 150 | 9 g |
| Savory Veggie Sushi | 150 | 3 g |
| Doro Wat (Ethiopian Chicken Stew) | 200 | 25 g |
| Savory Okonomiyaki | 210 | 8 g |
Nutrition data updated June 12, 2026.
Serving sizes
| Serving | Grams | Calories |
|---|---|---|
| 1 cup | 240 g | 215 kcal |
| 100g | 100 g | 90 kcal |
| 1 bowl | 350 g | 315 kcal |
Health score
5/10
Weight loss suitability
Moderate calorie content; ideal as a starter or paired with a salad.
Frequently asked questions
- What makes French onion soup special?
- Its deep flavor comes from slowly caramelized onions and savory broth.
- Can I make French onion soup vegetarian?
- Yes, use vegetable broth instead of beef broth for a vegetarian option.
- How can I store leftovers?
- Refrigerate in an airtight container for up to 3 days.
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