Affiliate links on this page — disclosure. As an Amazon Associate, CJ Affiliate, and AWIN publisher we earn from qualifying purchases.
How Many Calories in Cucumber?
Circle DNA Nutrition & Diet Report
Find out how your genes affect the way your body processes nutrients, carbs and fat. DNA-personalised diet plan based on 500+ genetic markers.
Get Your DNA Nutrition Report →Affiliate links:
Quick reference — common serving sizes
| Amount | Calories | Protein |
|---|---|---|
| 1 oz (28g) | 4 kcal | 0.2g |
| 100g | 15 kcal | 0.7g |
| half a cucumber | 8 kcal | 0.4g |
A cucumber contains 15 calories per 100g. A typical half a cucumber (52g) provides about 8 calories. Cucumber is low in calories. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.
Cucumber Nutrition Facts
| Nutrient | Per 100g | Per serving (52g) |
|---|---|---|
| Calories | 15 kcal | 8 kcal |
| Protein | 0.7g | 0.4g |
| Carbohydrates | 3.6g | 1.9g |
| of which Sugars | 1.7g | 0.9g |
| Fat | 0.1g | 0.1g |
| of which Saturates | 0.0g | 0.0g |
| Fibre | 0.5g | 0.3g |
| Sodium | 2.0mg | 1mg |
| Potassium | 147.0mg | 76mg |
| Calcium | 16.0mg | 8mg |
| Iron | 0.3mg | 0.2mg |
| Vitamin C | 2.8mg | 1.5mg |
| Vitamin A | 5.0µg | 3µg |
| Selenium | 0.3µg | 0µg |
| Riboflavin (B2) | 0.0mg | 0.0mg |
% of Daily Value (per 100g)
Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.
- Low in saturated fat (0% DV)
- Low in sodium (0% DV)
- Calories: 1% DV
- Protein: 1% DV
- Carbohydrates: 1% DV
- Fibre: 2% DV
- Fat: 0% DV
- Saturated fat: 0% DV
- Sodium: 0% DV
- Potassium: 3% DV
- Calcium: 1% DV
- Iron: 2% DV
- Vitamin C: 3% DV
- Vitamin A: 1% DV
- Selenium: 1% DV
- Riboflavin (B2): 0% DV
Useful for tracking cucumber
Affiliate links — we earn a commission at no extra cost to you. Disclosure ›
MORiSH Pork Chicharrónes
79% protein, zero carbs. Air-fried, not baked. One of the cleanest macros of any snack.
Shop MORiSH →Have a cat or dog? Check whether cucumber is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. Use a meal prep container set to portion out cucumber for the week. Tracking supplements too? Check drug and supplement interactions before combining anything new.
Good to know
Cooking method matters here too — boiling can leach some water-soluble vitamins into the cooking water, while steaming or roasting tends to retain more.
Does cucumber fit your diet?
Low-carb / keto
Cucumber contains 3.6g of carbohydrate per 100g, low enough to fit comfortably within most low-carb or ketogenic daily carb allowances — check the fat and protein split above against your specific macro targets.
Weight management
At 15 calories per 100g, cucumber is calorie-light relative to its volume, which can help keep a meal within a calorie target without needing very small portions.
Frequently Asked Questions
How many calories in cucumber per 100g?
Cucumber contains 15 calories per 100g, based on USDA reference data.
Is cucumber high in calories?
A half a cucumber of cucumber (52g) has around 8 calories — roughly 0% of a 2,000-calorie daily intake.
Is cucumber good for weight loss?
At 15 calories per 100g, cucumber is relatively low in calories and can fit well into a weight-loss diet. A half a cucumber provides about 8 calories.
How much protein is in cucumber?
Cucumber contains 0.7g of protein per 100g.
Is cucumber a good source of fibre?
Cucumber is relatively low in fibre at 0.5g per 100g, so pairing it with fibre-rich sides (vegetables, whole grains, legumes) can help balance a meal.
How does cucumber compare to asparagus, canned, regular pack, solids and liquids?
Cucumber has 15 calories per 100g, close to asparagus, canned, regular pack, solids and liquids at 15 — 0 calories fewer per 100g. See the full macro breakdown above.
Is cucumber keto-friendly?
Cucumber contains 3.6g of carbohydrate per 100g, which fits comfortably within most ketogenic daily carb allowances — check it against your specific daily carb target.
How many servings of cucumber for 20g of protein?
With 0.7g of protein per 100g, you'd need roughly 2857g of cucumber to reach 20g of protein
Foods with a similar calorie count
Other vegetables closest to cucumber by calories per 100g:
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Cucumber (this page) | 15 kcal | 0.7g | 3.6g | 0.1g |
| Asparagus, Canned, Regular Pack, Solids and Liquids | 15 kcal | 1.8g | 2.5g | 0.2g |
| Beans, Snap, Green, Canned | 15 kcal | 0.7g | 3.3g | 0.2g |
| Cabbage, Kimchi | 15 kcal | 1.1g | 2.4g | 0.5g |
| Gourd, White-flowered (calabash), Cooked, Boiled | 15 kcal | 0.6g | 3.7g | 0.0g |
| Lettuce, Green Leaf, Raw | 15 kcal | 1.4g | 2.9g | 0.1g |
| Pumpkin Flowers, Raw | 15 kcal | 1.0g | 3.3g | 0.1g |
More kit for cucumber tracking
Affiliate links — we earn a commission at no extra cost to you. Disclosure ›
DeerRun A1 Pro Treadmill
Hit your calorie targets at home — DeerRun's fold-flat treadmill hits 10mph with auto incline.
Shop DeerRun →Last updated:
Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.