TempoLife › Calorie database › Fruit › Lemon
Lemon calories and nutrition facts
100 grams of lemon contains 29 calories, with 1.1 g of protein, 9.3 g of carbohydrate and 0.3 g of fat. It provides 2.8 g of fiber and 2.5 g of sugar per 100 g. Most of its calories come from carbohydrate.
A lemon is seasoning rather than food: a whole one is about 17 calories, and nobody eats it like an orange. Its job is acidity — a squeeze lifts fish, dressings and vegetables in a way salt alone cannot, at essentially no calorie cost. Roll it firmly on the counter before juicing and you will get noticeably more out of it.
Where the calories come from
Protein 10% Carbs 84% Fat 6%
How lemon compares
Per 100 g, against the closest fruit in this database.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Lemon | 29 kcal | 1.1 g | 9.3 g | 0.3 g |
| Lime | 30 kcal | 0.7 g | 10.5 g | 0.2 g |
| Watermelon | 30 kcal | 0.6 g | 7.6 g | 0.2 g |
| Casaba melon, raw | 28 kcal | 1.1 g | 6.6 g | 0.1 g |
| Canned fruit salad, water pack | 30 kcal | 0.4 g | 7.9 g | 0.1 g |
Nutrition facts for lemon
| Nutrient | Per 100 g | Per 1 lemon |
|---|---|---|
| Calories | 29 kcal | 17 kcal |
| Protein | 1.1 g | 1 g |
| Carbohydrate | 9.3 g | 5 g |
| Fat | 0.3 g | 0 g |
| Fiber | 2.8 g | 2 g |
| Sugar | 2.5 g | 1 g |
| Saturated fat | 0 g | 0 g |
| Salt | 0 g | 0 g |
Print an EU-style nutrition label for lemon — per 100 g and per portion.
Vitamins and minerals in lemon
Per 100 g, highest share of the Daily Value first. %DV = the adult Daily Value (FDA reference). USDA reference data — not medical advice.
| Nutrient | Per 100 g | %DV |
|---|---|---|
| Vitamin C | 53 mg | 59% |
| Vitamin B6 | 0.08 mg | 5% |
| Copper | 0.04 mg | 4% |
| Iron | 0.6 mg | 3% |
| Potassium | 138 mg | 3% |
| Thiamin (B1) | 0.04 mg | 3% |
| Calcium | 26 mg | 2% |
| Magnesium | 8 mg | 2% |
See the richest foods per nutrient in the nutrient toplists.
Calories in common lemon servings
How many calories in a portion of lemon — reference serving estimates with the gram weight shown.
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 wedge or slice (7 g) | 2 kcal | 0.1 g | 0.7 g | 0 g |
| 1 fruit (58 g) | 17 kcal | 1 g | 5 g | 0 g |
| 1 fruit (84 g) | 24 kcal | 1 g | 8 g | 0 g |
| 100 g (100 g) | 29 kcal | 1 g | 9 g | 0 g |
| 1 cup, sections (212 g) | 61 kcal | 2 g | 20 g | 1 g |
Log lemon in one tap
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Frequently asked questions
How many calories are in lemon?
Lemon has 29 calories per 100 grams. A typical serving of 1 lemon (58 g) has about 17 calories.
How much protein is in lemon?
Lemon contains 1.1 g of protein per 100 g, or about 1 g per 1 lemon.
How much sugar is in lemon?
Lemon contains 2.5 g of sugar per 100 g. Nutrition values are reference figures; brands and preparation change the real amount, so weigh and log what you actually eat.
Is lemon low in calories?
Compared with other fruit it is: 29 kcal per 100 g versus a category median of 60 kcal.
Are these lemon calories exact?
No. These are per-100-gram reference values from the USDA FoodData Central SR Legacy source family. Portion size, ripeness, cut and cooking method all change the real number, so treat them as an estimate and log your own portion.
Related foods
Source: USDA FoodData Central SR Legacy #167746 (2018-04 release). US Government work — public domain in the United States. Reference values per 100 g edible portion.
