Cucumber has 15 kcal per 100g, with 0.8 g protein, 3.6 g carbohydrates and 0.1 g fat.
Last updated: October 3, 2026 · Written and fact-checked by the Calorie Cal team.
About 17% of the calories in Cucumber come from protein, a moderate amount. Most of its calories (78%) come from carbohydrates.
Calculated with 4 kcal per gram of protein and carbohydrate and 9 kcal per gram of fat, so the total can differ slightly from the listed calories.
About 95% water, cucumber is one of the lightest foods you can eat, at roughly 15 kcal per 100 g with the peel on. It is a staple of salads, raita, sandwiches and kachumber, and it adds crunch and volume to meals for very few calories. Creamy dressings and mayonnaise change the totals far more than the cucumber itself.
Typical portion: A whole 8-inch cucumber weighs about 300 g and comes to roughly 45 kcal.
Also known as: kheera, khira, cucumbers, english cucumber, kakdi
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 50 g | 8 kcal | 0.4 g | 1.8 g | 0.1 g |
| 100 g | 15 kcal | 0.8 g | 3.6 g | 0.1 g |
| 150 g | 23 kcal | 1.2 g | 5.4 g | 0.2 g |
| 200 g | 30 kcal | 1.6 g | 7.2 g | 0.2 g |
| 250 g | 38 kcal | 2 g | 9 g | 0.3 g |
One serving (100g) is 1% of a 2,000 kcal day and 1% of a 1,500 kcal day. It also gives 0.8 g of protein, which is 1% of a 100 g daily protein target.
| Food | Serving | Calories | Protein |
|---|---|---|---|
| Cucumber | 100g | 15 kcal | 0.8 g |
| Cooked Zucchini | 100g | 17 kcal | 0.6 g |
| Tomato | 100g | 18 kcal | 0.9 g |
| Cooked Spinach | 100g | 23 kcal | 2.9 g |
| Roasted Cauliflower | 100g | 29 kcal | 1.8 g |
| Bell Peppers | 100g | 31 kcal | 1 g |
| Steamed Broccoli | 100g | 35 kcal | 2.8 g |
Cucumber has 15 kcal per 100g. That serving also has 0.8 g protein, 3.6 g carbohydrates and 0.1 g fat.
Cucumber has 0.8 g of protein per 100g, so 17% of its calories come from protein.
No single food makes you gain or lose weight. Your total calories over the day and week do. Cucumber can fit a weight-loss diet when the portion fits your daily calorie target. At 15 kcal per 100 g it has a low calorie density, so a filling portion costs few calories.
It depends on your age, sex, height, weight and activity level. Most adults need somewhere between 1,600 and 3,000 kcal a day. Use the free calorie calculator to get your personal number.
Nutrition values are typical averages based on USDA FoodData Central and the Indian Food Composition Tables 2017 (ICMR–National Institute of Nutrition), with recipe-based estimates for mixed dishes.
Values are typical averages and vary by recipe, brand and portion size. For packaged foods, check the label. This page is general information, not medical advice.