Calories in Cucumber
Nutrition Facts
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How many calories in cucumber?
A raw cucumber contains 16 calories per 100 grams. Cucumber is a low-calorie food with high water content. This value remains stable across fresh slicing cucumbers, including varieties like English, Persian, and garden cucumber.
Cucumber provides low caloric density due to 95.2% water and minimal carbohydrates. Calories in cucumber come mainly from 3.63g carbohydrates per 100g, including 1.67g sugars and 0.5g fiber. Calorie variation stays below 5% among standard types, including English cucumber and pickling cucumber. Each 100g portion delivers 0.65g protein and 0.11g fat, adding minimal calorie load.
Cucumber is often consumed fresh in salads, sandwiches, and cold dishes. Caloric contribution stays constant across peeled and unpeeled forms unless oil, salt, or dressing is added. For example, cucumber salad with vinegar adds 5 kcal per 100g. Cucumber calories stay consistent across storage states if served raw and unprocessed.
Calories in a cucumber
A whole cucumber weighing approximately 300g contains 48 calories. Caloric total results from multiplying the standard 16 kcal per 100g. The value holds true for most raw, unpeeled cucumbers sold in grocery stores.
Larger cucumbers, such as slicing cucumbers, range from 250g to 400g. Examples include supermarket cucumbers labeled as “long English” or “standard salad cucumber.” These cucumbers deliver 40–64 kcal depending on size. Smaller cucumbers, such as mini Persian types, weigh around 100g each and contribute only 16 kcal.
Calorie difference between peeled and unpeeled cucumbers is below 1 kcal. The skin holds fiber but does not significantly raise energy value. Water retention affects weight but not calorie concentration. Cucumber remains a non-starchy, low-energy-density vegetable unless combined with dressing or oil.
Cucumber calorie content
Cucumber calorie content is 16 kcal per 100 grams. This value comes from the USDA FoodData Central listing for raw cucumber with peel. Calorie content remains similar between types if served raw.
Cucumber gets its low calorie content from its nutrient structure. It contains 95g water, 3.6g carbohydrates, 0.6g protein, and 0.1g fat per 100g. Each gram of carbohydrates provides 4 kcal, making up the bulk of the caloric value. Sugar types like glucose and fructose contribute to the energy total in raw cucumber.
Cucumber retains low energy even when chilled or sliced. This calorie content suits low-energy diets and high-volume meals. For example, adding 200g cucumber to salad adds only 32 kcal. Unseasoned, fresh cucumbers remain in the low-calorie vegetable category under standard classifications used by nutritionists and dietitians.
Cucumber nutrition facts calories
Cucumber delivers 16 kcal per 100g and includes 3.63g carbohydrates, 0.11g fat, and 0.65g protein. Caloric values are based on raw, unpeeled cucumber. Calories primarily derive from natural sugars such as glucose and fructose.
Cucumber is classified as a low-energy-density vegetable due to high water and low sugar. Each 100g contains 1.67g total sugars and 0.5g fiber. This composition produces limited digestible energy. Fat content contributes less than 1% to total calories. Cucumber contains no cholesterol and low sodium unless processed.
Raw cucumber maintains its caloric values across slicing methods and storage forms. For example, diced, spiralized, or peeled cucumber still equals 16 kcal per 100g. Pickled cucumbers can contain more sugar or sodium, altering calorie content based on brine. Raw cucumber remains consistent for calorie tracking purposes.
Cucumber calories per 100g
Cucumber contains exactly 16 kilocalories per 100 grams. This calorie amount is listed by USDA FoodData Central for raw cucumber with peel. The value does not change between thin-skinned and thick-skinned varieties unless modified during processing.
Calories per 100g are calculated based on 3.63g carbohydrates, 0.11g fat, and 0.65g protein. Carbohydrates contribute 14.5 kcal, fat adds 1 kcal, and protein adds 2.6 kcal. Totaling these yields the exact 16 kcal. The energy density remains 0.16 kcal per gram.
This calorie value is standard for all fresh cucumbers. Example cucumbers matching this profile include English cucumber, garden cucumber, and Persian cucumber. Calorie increase only occurs from toppings or flavorings. Per 100g, cucumber remains in the low-calorie group.
How many calories are in a whole cucumber?
A whole raw cucumber with peel contains 45 kcal per 300g. A peeled cucumber of the same weight has around 30 kcal. Caloric value depends on water content and peel thickness.
Raw cucumbers retain 95% water, which reduces calorie density. Cucumber skin contributes fiber and slightly more carbohydrates. USDA nutrient data confirms 100g cucumber with peel has 15 kcal, while 100g peeled has 10 kcal.
A large whole cucumber weighs around 300g. Energy values scale proportionally with weight. For cucumbers weighing 250g or 350g, calories range from 38 to 53 kcal.
How many calories are in half a cucumber?
Half a medium cucumber contains 22 kcal per 150g. That value represents one sliced or whole half of a 300g cucumber. Calorie estimates vary by cucumber size.
Half-cucumber values change with peel status. With peel, half contains 22 kcal; without peel, it contains 15 kcal. USDA FoodData Central confirms 10 kcal per 100g peeled cucumber.
Sliced half-cucumbers retain same calories per weight. Volume has no effect unless cucumber is cooked or drained. Average medium cucumbers weigh 300g.
How many calories are in sliced cucumber?
One cup of sliced raw cucumber contains 16 kcal per 104g. Slices retain full water content. Slice thickness and peel inclusion affect weight, not energy density.
Sliced cucumbers follow same kcal-to-gram ratio as whole cucumbers. One thin-sliced cup weighs less than thick-sliced. Standard slice thickness produces 16 kcal per cup with peel.
Data shows slices offer fewer calories than pickled or cooked cucumber. USDA confirms 15 kcal per 100g raw cucumber slices. Slices retain structure unless drained or salted.
Calories in 1 cup of cucumber slices
One cup of sliced cucumber provides 16 kcal per 104g. Slices are measured loosely packed. This amount includes peel and reflects USDA standard volume.
One peeled cup has 12 kcal per 100g. Peeled slices weigh slightly less due to water content. Nutrient databases confirm 95–96% water in cucumber flesh.
Thicker slices raise weight but not kcal density. One tightly packed sliced cup weighs 120g and delivers 18 kcal. Loosely packed volume matches serving size on most labels.
How many calories in peeled cucumber?
Peeled raw cucumber has 10 kcal per 100g. A whole peeled cucumber weighing 300g contains 30 kcal. Removal of peel lowers fiber and carbohydrate content.
USDA FoodData Central shows 1.6g carbs per 100g peeled cucumber. Skinless cucumbers retain water density. Most peeled servings range between 10–30 kcal depending on weight.
A medium peeled cucumber cut into slices or sticks has 28 kcal. Caloric variation follows weight change. Example peeled cucumber weights: 150g = 15 kcal, 200g = 20 kcal.
How many calories in unpeeled cucumber?
Unpeeled raw cucumber has 15 kcal per 100g. A full cucumber with peel and weight of 300g provides 45 kcal. Peel adds minor calorie content through fiber and carbs.
The peel adds 1g of fiber and 0.5g more carbohydrates per 100g. USDA confirms unpeeled cucumbers contain more antioxidants and phytonutrients. Calorie density remains low.
Sliced unpeeled cucumbers in 1-cup servings provide 16 kcal per 104g. Unpeeled sticks, cubes, or ribbons retain the same ratio. Shape does not affect kcal per gram.
Calories in raw cucumber vs cooked cucumber
Raw cucumber contains 15 kcal per 100g. Cooked cucumber contains 20 kcal per 100g. Cooking reduces water content and raises calorie concentration per gram.
Steamed cucumbers lose 10–20% water. Frying or baking increases calories with oil. USDA data confirms 20–25 kcal per 100g steamed cucumber with seasoning.
Raw cucumber slices weigh more per volume. Cooked cucumber shrinks, creating denser servings. Example: 150g raw = 22 kcal; 150g cooked = 30 kcal if salted or spiced.
