A typical serving of leek (1 cup, chopped, 89 g) has about 54 calories. Per 100 g: 61 kcal, 1.5 g protein, 14.2 g carbs, 0.3 g fat. The same 100 g carries 1.8 g of fiber and 3.9 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup, chopped | 89 g | 54 kcal |
| 1 slice | 6 g | 4 kcal |
| 100 g | 100 g | 61 kcal |
A milder onion; a cup of chopped leek adds about 54 calories to the pot. On the energy-density scale, 61 kcal per 100 g puts leek at the low end.
A typical serving (1 cup, chopped, 89 g) has about 54 calories, and 100 g has 61 kcal. Calories scale with weight, so double the portion means double the number.
There are 1.5 g of protein in 100 g of leek, which works out to about 1.3 g per serving (1 cup). Treat it as an energy source rather than a protein source.
There are 14.2 g of carbohydrate per 100 g of leek, or about 13 g in 1 cup (89 g).
Every value on this page comes from USDA FoodData Central, entry 169246 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 169246 (SR Legacy). Serving calories are computed from the per-100-g values.
