Foods · Vegetables
Calories in cucumber
Cucumber: about 15 calories per 100 g. A portion of 1 cucumber (301 g) has about 45 calories.
Calories and nutrients by portion
| Portion | Grams | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 100 g (3.5 oz) | 100 g | 15 | 0.7 g | 3.6 g | 0.1 g |
| 0.5 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 |
Where the calories come from
- Protein 14%
- Carbs 80%
- Fat 5%
Shares are estimated with 4 calories per gram of protein and carbohydrate and 9 per gram of fat.
Full nutrition per 100 g
| Calories | 15 kcal |
| Protein | 0.7 g |
| Carbohydrate | 3.6 g |
| of which sugars | 1.7 g |
| Fibre | 0.5 g |
| Fat | 0.1 g |
| of which saturated | 0 g |
| Cholesterol | 0 mg |
| Sodium | 2 mg |
| Potassium | 147 mg |
| Calcium | 16 mg |
| Iron | 0.3 mg |
| Vitamin C | 2.8 mg |
| Water | 95.2 g |
How it compares with other vegetables
Among the 28 vegetables listed on this site, cucumber ranks number 2 from the lowest in calories per 100 g, and number 28 from the highest in protein per 100 g.
Fewer calories per 100 g
- Celery 14 cal
More calories per 100 g
- Radish 16 cal
- Romaine lettuce 17 cal
- Zucchini 17 cal
What 45 calories equal in exercise
For a 155 lb (70 kg) person, Harvard Health lists about 133 calories for 30 minutes of walking at 3.5 mph and about 288 for 30 minutes of running at 5 mph. By that chart, a portion of cucumber (1 cucumber, 45 calories) equals about 10 minutes of walking or 5 minutes of running. Use the calories burned calculator for your own weight.
About these numbers
The figures come from the USDA FoodData Central entry “Cucumber, with peel, raw”. They describe the raw food. Cooking changes the water content, so calories per 100 g will differ once it is cooked. They are reference averages, so brands, ripeness, cuts and recipes shift the real number. Treat them as estimates, and weigh food for the closest result.
Quick answers
How many calories are in cucumber (1 cucumber)?
About 45 calories (≈). That is 1 cucumber (301 g) of cucumber, using the USDA reference value of 15 calories per 100 g.
How many calories are in 100 grams of cucumber?
About 15 calories (≈). One ounce (28 g) is about 4 calories.
How much protein is in cucumber?
0.7 g per 100 g, and about 14% of its calories come from protein (≈). A portion of 1 cucumber has about 2 g.
Source
- USDA FoodData Central, SR Legacy: Cucumber, with peel, raw (FDC ID 168409)
- U.S. Department of Agriculture, Agricultural Research Service. FoodData Central. fdc.nal.usda.gov
- Harvard Health: calories burned in 30 minutes for people of three different weights
General information, not medical advice. Nutrient values are estimates and vary by product and portion.
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