Vegetables
How many calories in Cucumber?
Cucumber is mostly water and very low in calories.
Per 100 g
15 kcal
1/2 cup slices
8 kcal
(52 g)
| Protein | Carbs | Fat |
|---|---|---|
| 0.7 g / 100g | 3.6 g / 100g | 0.1 g / 100g |
In numbers
Where the calories come from
Protein 15% · Carbs 80% · Fat 5%
Share of energy: 4 kcal per gram of protein and carbs, 9 kcal per gram of fat.
- 1/2 cup slices (52 g, 8 kcal) is 0% of a 2,000 kcal day. 2,000 kcal is the reference day used on nutrition labels, not a personal target.
- Burning 1/2 cup slices takes about 2 min of brisk walking. Estimate for a 70 kg adult walking briskly (about 4 kcal a minute).
Compared with similar foods
Cucumber is number 1 of 6 by calories per 100 g, lowest first. The similar foods average 76 kcal per 100 g.
| Food | kcal / 100 g | Protein / 100 g |
|---|---|---|
| Cucumber | 15 | 0.7 g |
| Savory Sautéed Spinach | 23 | 3 g |
| Beet Greens Stir-Fry | 35 | 2.5 g |
| Roasted Sweet Potato Wedges | 90 | 2 g |
| Zesty Lime Chili Corn | 110 | 3 g |
| Sriracha Lime Brussels Sprouts | 120 | 3 g |
Nutrition data updated June 12, 2026.
Health score
9/10
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