Calorie data · Vegetables← All foods

How many calories in
cucumber?

Cucumber is 16 calories per 100g — over 95% water. A whole cucumber is around 48 calories. They add bulk and crunch to meals without contributing meaningfully to any macro target, which makes them a top high-volume ingredient in cutting diets.

16
kcal · 100g
0.7g
Protein
3.6g
Carbs
0.1g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical cucumber serving translates in your tracker:

Serving
Calories
Protein
1 medium (301g)
48 kcal
2.1g
1 cup, sliced (104g)
17 kcal
0.7g
1 small (158g)
25 kcal
1.1g
Track this food

Skip the lookup. Snap the plate.

Point your iPhone camera at cucumber and SpotWell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.

Download on theApp Store
FAQ

Quick answers.

How many calories in cucumber?

Cucumber has approximately 16 calories per 100g. A typical serving — 1 medium (301g) — comes in at 48 calories.

How much protein is in cucumber?

0.7g of protein per 100g. That puts cucumber at roughly 4.4g of protein per 100 calories — a useful lens when comparing to other vegetables sources.

How do I log cucumber accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is cucumber good for weight loss?

It depends on your overall calorie target. Cucumber is naturally low-calorie at 16 kcal per 100g, so it's easy to fit into a deficit.