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.
Common serving sizes.
Calories scale with portion. Here's how a typical cucumber serving translates in your tracker:
What 16 calories means.
Very low calorie — at 16 kcal per 100g, cucumber adds volume to a meal without meaningfully denting a calorie deficit.
Cucumber vs. similar foods.
How cucumber stacks up on calories and protein against foods people commonly compare it to:
Skip the lookup. Snap the plate.
Point your iPhone camera at cucumber and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.
Download on theApp StoreQuick 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 a few seconds. 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.