Calories in Lettuce, romaine, green, raw
Generic food Raw Vegetables
Lettuce, romaine, green, raw contains 18 kcal per 100 g. A typical serving of reference amount, racc (85 g) provides about 15 kcal.
Roughly 78% of its calories come from carbohydrates, with 19% from protein and 3% from fat (estimated with general energy factors).
That is less energy than the typical item in vegetables and vegetable products on FoodFactly, where the median is 35 kcal per 100 g across 866 foods.
100 g provides 70% of the Daily Value for Vitamin K.
The data comes from USDA FoodData Central: Foundation Foods.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 17.5 kcal | |
| Total fat M | 0.071 g | 0.1% |
| Saturated fat | not reported | |
| Sodium M | 23 mg | 1% |
| Total carbohydrates C | 4.1 g | 1% |
| Dietary fiber | not reported | |
| Total sugars | not reported | |
| Protein C | 0.98 g | 2% |
| Vitamin K M | 83.4 µg | 70% |
| Thiamin (B1) M | 0.063 mg | 5% |
| Niacin (B3) M | 0.37 mg | 2% |
| Vitamin B6 M | 0.063 mg | 4% |
| Calcium M | 27.6 mg | 2% |
| Iron M | 0.27 mg | 1% |
| Magnesium M | 12 mg | 3% |
| Phosphorus M | 23.4 mg | 2% |
| Potassium M | 260 mg | 6% |
| Zinc M | 0.25 mg | 2% |
| Copper M | 0.049 mg | 5% |
| Manganese M | 0.23 mg | 10% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 19%
- Carbohydrates 78%
- Fat 3%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein0.98 gin the lowest quarter of vegetables and vegetable products (median 2 g)
- Fat0.071 gin the lowest quarter of vegetables and vegetable products (median 0.3 g)
- Sodium23 mgbelow the median for vegetables and vegetable products (median 36 mg)
- Protein per 100 kcal5.6 gprotein density, useful for comparing foods with different calorie levels
- Water94.3 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Other components (5)
| Water M | 94.3 g |
|---|---|
| Nitrogen M | 0.16 g |
| Ash M | 0.61 g |
| Vitamin K (Menaquinone-4) M | 0 µg |
| Vitamin K (Dihydrophylloquinone) M | 0 µg |
Other forms of Lettuce
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Lettuce, butterhead (includes boston and bibb types), raw Raw | 13 | 1.4 g | 2.2 g | 0.22 g |
| Lettuce, red leaf, raw Raw | 13 | 1.3 g | 2.3 g | 0.22 g |
| Romaine lettuce, raw Raw | 17 | 1.2 g | 3.3 g | 0.3 g |
| Iceberg lettuce, raw Raw | 14 | 0.9 g | 3 g | 0.14 g |
| Lettuce, green leaf, raw Raw | 15 | 1.4 g | 2.9 g | 0.15 g |
| Lettuce, iceberg, raw Raw | 15 | 0.74 g | 3.4 g | 0.074 g |
| Lettuce, leaf, red, raw Raw | 15 | 0.88 g | 3.3 g | 0.11 g |
| Lettuce, leaf, green, raw Raw | 19 | 1.1 g | 4.1 g | 0.16 g |
| Lettuce, raw Raw | 20 | 0.92 g | 3.7 g | 0.1 g |
| Lettuce, Boston, raw Raw | 18 | 0.88 g | 3.3 g | 0.11 g |
| Lettuce, arugula, raw Raw | 25 | 2.6 g | 3.7 g | 0.66 g |
| Lettuce, salad with assorted vegetables including tomatoes and/or carrots, no dressing | 24 | 1.1 g | 4.6 g | 0.2 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Cucumber, with peel, raw Raw | 15 | 0.65 g | 3.6 g | 0.11 g |
| Pumpkin flowers, raw Raw | 15 | 1 g | 3.3 g | 0.07 g |
| Butterbur, (fuki), raw Raw | 14 | 0.39 g | 3.6 g | 0.04 g |
| Vinespinach, (basella), raw Raw | 19 | 1.8 g | 3.4 g | 0.3 g |
| Taro shoots, raw Raw | 11 | 0.92 g | 2.3 g | 0.09 g |
| Gourd, white-flowered (calabash), raw Raw | 14 | 0.62 g | 3.4 g | 0.02 g |
| Cornsalad, raw Raw | 21 | 2 g | 3.6 g | 0.4 g |
| Purslane, raw Raw | 20 | 2 g | 3.4 g | 0.36 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw lettuce?
100 g of raw lettuce has 18 kcal. Reference amount, racc (85 g): about 15 kcal.
How much protein is in raw lettuce?
Raw lettuce contains 0.98 g of protein per 100 g (2% of the 50 g Daily Value), or 0.83 g in reference amount, racc (85 g). About 19% of its calories come from protein. Compared with other vegetables and vegetable products, that is in the lowest quarter (median 2 g).
How many carbs are in raw lettuce?
Raw lettuce has 4.1 g of total carbohydrates per 100 g.
How much fat is in raw lettuce?
Raw lettuce contains 0.071 g of fat per 100 g.
What vitamins and minerals does raw lettuce contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamin K (70% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw lettuce?
100 g contains 23 mg of sodium, 1% of the 2,300 mg Daily Value.
Where does this nutrition data come from?
From USDA FoodData Central: Foundation Foods, record dated October 28, 2022. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: Foundation Foods, record 2346389. License: CC0 1.0 (U.S. public domain). Source record dated October 28, 2022. Imported November 6, 2026.
Last updated: . Data quality score: 85/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.