Cucumber Nutrition Facts: Calories, Vitamins & Minerals
Cucumber nutrition facts per 100 g and per serving
| Nutrient | Per 100 g | Serving: one, 100 g |
|---|---|---|
| Calories | 15 kcal | 15 kcal |
| Energy (kilojoules) | 63 kJ | 63 kJ |
| Protein | 0.8 g | 0.8 g |
| Fat | 0.1 g | 0.1 g |
| incl. saturated | 0 g | 0 g |
| Total carbohydrates | 3.5 g | 3.5 g |
| incl. sugars | 1.8 g | 1.8 g |
| incl. fiber | 1 g | 1 g |
| Salt | 0 g | 0 g |
*Where the numbers come from
Values per 100 g as eaten, averaged from food composition tables (USDA FoodData Central and others) and rounded — a specific brand or recipe will differ a little. Carbohydrates are total carbohydrate, fiber included, as on a US Nutrition Facts label.
15 kcal (63 kJ) per 100 g · P/F/C 0.8/0.1/3.5 g
Serving (one, 100 g) — 15 kcal (63 kJ) · Nutri-Score A
Per 100 g: sugar: low saturated fat: low salt: low fiber: low
Are cucumbers healthy?
Yes. On their nutrient profile, cucumbers are a healthy choice: grade A on the open 2023 Nutri-Score algorithm, the top grade.
For
- Low in calories: 15 kcal per 100 g.
- Counts toward your fruit and vegetables: a 100 g serving is 25% of the 400 g a day the WHO advises.
A typical serving (one, 100 g) has 15 kcal, 0.8 g protein, 0.1 g fat and 3.5 g carbs. Other weights in the table.
How we judge this, and the sources
The answer comes from the food's composition, not from opinion: its Nutri-Score grade on the open 2023 algorithm, a traffic light for sugar, salt, saturated fat and fiber per 100 g, and the share of daily reference amounts in a typical serving (for salt, sugar, fiber and vegetables, those of the WHO). It rates the food's nutrient profile; it is not medical advice. Formulas, thresholds and every source are on the methodology page; last checked against the sources on November 1, 2026. The short food description was written by our language model (AI) — how we check the text.
More about this food
Cucumbers are about 95% water: almost no calories, but they add volume and crunch to any plate.
protein 23%fat 6%carbs 71%
Vitamins and minerals in cucumber
Per 100 g, the standouts are vitamin K — 16 mcg, 14% of the Daily Value.
| Nutrient | Per 100 g | Serving: one, 100 g | % DV |
|---|---|---|---|
| Vitamin C | 2.8 mg | 2.8 mg | 3% |
| Vitamin K | 16 mcg | 16 mcg | 14% |
| Thiamin (B1) | 0.03 mg | 0.03 mg | 2% |
| Riboflavin (B2) | 0.03 mg | 0.03 mg | 3% |
| Vitamin B6 | 0.04 mg | 0.04 mg | 2% |
| Potassium | 147 mg | 147 mg | 3% |
| Magnesium | 13 mg | 13 mg | 3% |
| Copper | 0.04 mg | 0.04 mg | 5% |
| Manganese | 0.08 mg | 0.08 mg | 3% |
*Where the vitamin numbers come from
Vitamins and minerals come from the USDA FoodData Central record “Cucumber, with peel, raw” (FDC ID 168409, SR Legacy; public domain), checked October 14, 2026; the record was matched to this food by calories, protein and fat. % DV is per serving, against the FDA Daily Values used on Nutrition Facts labels (2,000-calorie diet). The table lists nutrients that reach at least 2% DV per 100 g; the rest are absent or trace. Varieties, seasons and brands differ, and cooking in water leaches some vitamin C and B vitamins.
Cucumber calories by weight, 50–300 g
150 g of cucumber has 23 calories and 200 g has 30. The table gives protein, fat and carbs for each weight; for any other amount, type your own into the calculator below.
| Weight | Kcal | P / F / C, g | Fiber, g |
|---|---|---|---|
| 50 g | 7.5 | 0.4 / 0.1 / 1.8 | 0.5 |
| 100 g — typical serving | 15 | 0.8 / 0.1 / 3.5 | 1 |
| 150 g | 23 | 1.2 / 0.2 / 5.3 | 1.5 |
| 200 g | 30 | 1.6 / 0.2 / 7 | 2 |
| 250 g | 38 | 2 / 0.3 / 8.8 | 2.5 |
| 300 g | 45 | 2.4 / 0.3 / 11 | 3 |
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Calories in dishes with cucumber
| Dish | Serving | Kcal per serving | Cucumber in it |
|---|---|---|---|
| Georgian tomato and cucumber salad with walnuts | 250 g | 248 | ≈101 g |
| Fattoush salad | 230 g | 230 | ≈60 g |
| King crab and avocado salad | 190 g | 239 | ≈41 g |
| Salmon and avocado salad | 200 g | 302 | ≈40 g |
| Halloumi salad | 220 g | 352 | ≈40 g |
| Asian sesame chicken salad | 230 g | 232 | ≈40 g |
| Cucumber mint lemonade | 350 ml | 112 | ≈59 g |
| Thai beef salad (yam nua) | 250 g | 295 | ≈41 g |
How we count
Dishes are estimated from typical restaurant and home recipes — a specific kitchen will differ.
Cucumber: swaps and alternatives
No need to swap: cucumbers already get grade A, the top of the scale, and nothing is in the red on the per-100 g traffic light: sugar 1.8 g (red is over 22.5 g), saturated fat 0 g (over 5 g) and salt 0 g (over 1.5 g). We only suggest a swap when it fixes a real problem. How we pick swaps.
Equally good alternatives
Same food group and the same place on the plate, with a Nutri-Score grade at least as good. Figures are for 100 g, a typical serving of cucumber.
Cucumber vs similar foods: calories compared
| Per 100 g | Kcal | P / F / C, g |
|---|---|---|
| Cucumber | 15 | 0.8 / 0.1 / 3.5 |
| Romaine Lettuce | 17 | 1.2 / 0.3 / 3.3 |
| Cherry Tomatoes | 18 | 0.9 / 0.2 / 3.9 |
| Tomatoes | 20 | 1.1 / 0.2 / 4.9 |
| Mushrooms | 22 | 3.1 / 0.3 / 3.3 |
| Asparagus | 22 | 2.4 / 0.2 / 4 |
| Spinach | 23 | 2.9 / 0.4 / 3.6 |
FAQ
How many calories are in 100 g of cucumber?
100 g of cucumber has 15 calories, with 0.8 g protein, 0.1 g fat and 3.5 g carbohydrates (1 g fiber).
How many calories are in a serving of cucumber?
A serving (one, 100 g) has 15 calories: 0.8 g protein, 0.1 g fat and 3.5 g carbs.
What are the macros of cucumbers?
Per 100 g: 0.8 g protein, 3.5 g carbs and 0.1 g fat. By calories that's about 23% protein, 71% carbs and 6% fat.
What vitamins and minerals are in cucumber?
Per 100 g, cucumber is richest in vitamin K (16 mcg, 14% DV) — from USDA FoodData Central record 168409.
How much fiber is in cucumbers?
100 g of cucumber has 1 g of fiber — 4% of the 25 g a day the WHO recommends.
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