Cucumber
15 kcal per 100g
Cucumber has 15 kcal per 100 g, and 1 medium (201 g) comes to about 30 kcal, with 1.4 g protein, 7.2 g carbs and 0.2 g fat. Values are for raw cucumber with skin. Because it is over 95 % water, even a whole cucumber stays low in calories.
Kairo logs Cucumber from a photo: the app estimates the portion on the plate and fills in calories and macros from reference data, no typing needed.
Your portion
Type the grams or the calorie budget you have left.
- 0.7 g
- Protein
- 3.6 g
- Carbs
- 0.1 g
- Fat
100 g ≈ 1 % of a 2,000 kcal reference intake. Work out your own daily need
Nutrition Facts
Serving size: 100g
Compare with: Asparagus · Beetroot · Bell Pepper (red)
Health Info
Cucumber is over 95% water and provides minimal calories, perfect for hydration-focused, high-volume eating. Despite the low calorie count, it supplies vitamin K and small amounts of magnesium and potassium. The skin contains most of the fiber.
Macros per 100g
Values per 100 g are based on recognised nutrition reference data. Last reviewed: May 2026. View sources
Track Cucumber in Kairo
Just photograph it. Kairo's AI reads the portion and the nutrition. Three seconds later the calories and macros are in your log, no typing.
Get Kairo on the App StoreFrequently Asked Questions
- How many calories are in Cucumber?
- Cucumber has 15 kcal per 100 g. A typical 201 g serving contains about 30 kcal.
- How much protein is in Cucumber?
- Cucumber provides 0.7 g of protein per 100 g.
- How many carbs are in Cucumber?
- Cucumber contains 3.6 g of carbohydrates per 100 g, of which 1.7 g is sugar.
- How much fat is in Cucumber?
- Cucumber contains 0.1 g of fat per 100 g. It also provides 0.5 g of fiber per 100 g.
- Is Cucumber good for weight loss?
- With only 15 kcal per 100 g, Cucumber is low in calories and fits easily into a weight-loss diet.
- Can I log Cucumber in Kairo from a photo?
- Yes, photograph the plate and Kairo estimates the portion of Cucumber, then logs calories and macros from reference data. If the portion looks off, you can adjust the grams and the numbers update.