Calories in a cucumber
A cucumber (1 cucumber, 301 g) has 45 calories, with 2 g of protein, 10.9 g of carbohydrates and 0.3 g of fat. Per 100 g, that's 15 kcal.
Values are for Cucumber, with peel, raw. Amounts vary with size, variety and preparation.
Cucumber
Per 1 cucumber (301 g)
Source: USDA FoodData Central.
Calories in a cucumber by serving
| Serving | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 100 g | 100 g | 15 | 0.7 g | 3.6 g | 0.1 g |
| ½ cup slices | 52 g | 8 | 0.3 g | 1.9 g | 0.1 g |
| 1 cucumber (8-1/4") | 301 g | 45 | 2 g | 10.9 g | 0.3 g |
| 1 oz | 28 g | 4 | 0.2 g | 1 g | 0 g |
Where the calories come from
Protein 14%Carbs 80%Fat 6%
Cucumber has a very low energy density (0.1 kcal per gram). It provides 4.3 g of protein per 100 kcal.
Vegetables: calories compared
| Per 100 g | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Celery | 14 | 0.7 g | 3 g | 0.2 g |
| Cucumber | 15 | 0.7 g | 3.6 g | 0.1 g |
| Zucchini | 17 | 1.2 g | 3.1 g | 0.3 g |
| Romaine lettuce | 17 | 1.2 g | 3.3 g | 0.3 g |
| Tomato | 18 | 0.9 g | 3.9 g | 0.2 g |
| Asparagus | 20 | 2.2 g | 3.9 g | 0.1 g |
| Mushrooms | 22 | 3.1 g | 3.3 g | 0.3 g |
| Spinach | 23 | 2.9 g | 3.6 g | 0.4 g |
| Cauliflower | 25 | 1.9 g | 5 g | 0.3 g |
| Red bell pepper | 26 | 1 g | 6 g | 0.3 g |
| Green beans | 31 | 1.8 g | 7 g | 0.2 g |
| Broccoli | 34 | 2.8 g | 6.6 g | 0.4 g |
| Onion | 40 | 1.1 g | 9.3 g | 0.1 g |
| Carrots | 41 | 0.9 g | 9.6 g | 0.2 g |
| Green peas | 78 | 5.2 g | 14.3 g | 0.3 g |
| Sweet potato | 90 | 2 g | 20.7 g | 0.1 g |
| Baked potato | 93 | 2.5 g | 21.1 g | 0.1 g |
| Corn on the cob | 96 | 3.4 g | 21 g | 1.5 g |
Log it in seconds
In C for Calories, photograph your plate and a cucumber is estimated along with everything else on it, or search for it and enter the amount in grams. For packaged versions, scan the barcode to use the label.
Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, SR Legacy, FDC ID 168409. Calories are rounded to the nearest whole number and nutrients to one decimal place.
FAQ
Frequently asked questions
How many calories are in a cucumber?
45 calories in 1 cucumber (301 g), or 15 calories per 100 g.
How much protein is in a cucumber?
2 g of protein in 1 cucumber (301 g) (0.7 g per 100 g).
How many carbs are in a cucumber?
10.9 g of carbohydrates in 1 cucumber (301 g), including 1.5 g of fiber.