How Many Calories Are In A Medium Sized Cucumber? | Crisp Facts Guide

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Cucumber is one of those foods you can pile on a plate without adding many calories. A whole medium cucumber adds crunch, water, and a light fresh taste while barely moving your daily tally.

Even then, it still helps to know roughly how much energy that medium cucumber brings to your day, especially when you track intake for weight changes, blood sugar, or general health goals.

Calorie Count For A Medium Cucumber Portion

Most nutrition references place a medium unpeeled cucumber at around 30 calories. WebMD lists a medium raw cucumber with peel at 30 calories, with about 6 grams of carbohydrate, 1 gram of protein, and 1 gram of fiber in that piece.

Other databases break the same vegetable into different serving sizes. USDA based charts and tools often list cucumber calories by 100 grams, which comes out close to 15–16 calories for that weight. When you scale that up to a medium cucumber, which often sits near 200 grams once you remove the ends, you land right near that 30 calorie mark.

Portions also shift when you peel the cucumber. FatSecret’s summary of USDA data shows around 24 calories for one medium peeled cucumber, which lines up with the lower calorie count you would expect when some peel and seeds are removed. In practice, the peel itself adds only a few calories; most of the swing comes from the exact size of the vegetable.

Cucumber Portion	Approximate Weight	Approximate Calories
Half medium cucumber, peeled	About 100 g	12–15 kcal
One medium cucumber, peeled	Around 200 g	24–30 kcal
One medium cucumber, unpeeled	About 200–250 g	28–32 kcal
One long salad cucumber (about 8¼ inches)	Near 300 g	40–45 kcal

Any of these servings still fit easily inside your overall daily calorie intake plan, which is why cucumber shows up so often in snack plates and salads.

Why Different Databases List Different Calories

When you compare charts, you might see one source list 24 calories for a medium cucumber and another list 30. That gap comes from small differences in the way serving sizes are defined. Some entries are peeled, some are unpeeled, some count a shorter salad cucumber, and some count a long one.

Water content adds another layer. Cucumbers are about 95–96 percent water by weight, so a slightly denser cucumber grown in drier soil can pack more solids in the same size. That changes calories in a subtle way, though the range still stays low overall.

Rounding rules also create small shifts. A database that rounds each nutrient and then converts to calories can land a little above or below another source that calculates with more decimal places. For daily use, it is safe to treat a medium cucumber as a 30 calorie item, with a small margin either side.

Government and health resources back up this low energy picture. The USDA SNAP-Ed cucumbers guide lists a longer cucumber at about 45 calories, which lines up neatly with the idea that a shorter medium version sits nearer 30.

Nutrition Profile Of A Medium Cucumber

Calories only tell part of the story. A medium cucumber also brings small amounts of carbohydrate, fiber, and micronutrients that support daily health goals.

Macronutrients In Cucumber

A medium unpeeled cucumber tends to sit near 6 grams of carbohydrate, with about 1 gram of fiber and less than 1 gram of natural sugar. Protein lands near 1 gram, with trace amounts of fat that barely register in most tracking apps.

On a per 100 gram basis, USDA style tables show cucumber at around 3.5–3.7 grams of carbohydrate, about half a gram of fiber, and a similar half gram of protein. This lines up with the light calorie load you saw earlier; most of the weight is water, not starch or fat.

The fiber might look modest at first glance, yet it still helps slow down how fast you eat and can add a touch of volume to meals that might otherwise feel light.

Vitamins, Minerals, And Water Content

Raw cucumber contains modest amounts of vitamin K, vitamin C, and potassium. In many nutrient charts, 100 grams of cucumber with peel gives around 14 percent of the daily value for vitamin K, plus small amounts of vitamin C and potassium that stack up as you add more vegetables to your plate.

The standout trait here is water. Raw cucumber with peel is about 95 percent water by weight, which means a medium cucumber adds a glass worth of fluid to your day without many calories. That makes it a handy side for people who find it hard to drink plain water on its own.

Health sites such as WebMD cucumber nutrition facts point out that this blend of water, fiber, and minerals can fit neatly into plans for blood pressure, weight changes, and digestive comfort, as long as the rest of the meal pattern stays balanced.

How Size, Peel, And Seeds Change Cucumber Calories

Even with such a low base, it helps to understand how common changes in cucumber prep nudge the calorie count.

Small, Medium, And Large Cucumber Comparisons

Most stores sell a mix of small, medium, and long cucumbers. A small one might weigh under 150 grams, a medium one around 200 grams, and a long salad cucumber close to 300 grams or more. Since the calorie density is low and fairly steady, total calories scale almost directly with weight.

A small cucumber near 150 grams will usually sit in the 20–25 calorie range. A medium cucumber near 200 grams lands near 30 calories. A long cucumber near 300 grams jumps to roughly 40–45 calories, which is still low for that much volume on the plate.

When you slice cucumbers into batons or rounds for a snack, it can help to picture half a medium cucumber as a handful of slices that give about 15 calories. That image keeps portions in check without constant measuring.

Peeled Versus Unpeeled Cucumber Slices

Peeling removes a thin layer of skin and a small amount of fiber. The peel holds a bit of vitamin K and some of the pigment compounds that give cucumber its green edge. The calorie change, though, stays small.

If you peel a medium cucumber, you may shave off a gram or two of carbohydrate and tiny amounts of fiber. That could lower the calorie count by only a couple of units. For day to day tracking, it is safe to use the same 30 calorie ballpark for a medium cucumber, peeled or unpeeled, and treat the peel decision as a taste and texture choice rather than a calorie tool.

Using Cucumber Calories In Daily Eating

Once you know a medium cucumber brings only about 30 calories, it becomes easier to plan meals and snacks that leave room for dressings, dips, and protein sources.

Swapping Higher Calorie Snacks For Cucumber

A plate built around cucumber slices can replace higher calorie snack bowls without feeling sparse. You keep the hand-to-mouth motion and crunch, yet the energy number drops sharply.

Snack Option	Typical Serving	Approximate Calories
Medium cucumber, raw	1 whole piece	30 kcal
Cucumber slices	1 cup, sliced	14–16 kcal
Potato chips	1 oz (about 15 chips)	150 kcal
Butter crackers	5 small crackers	70–80 kcal
Small apple	1 fruit, about 150 g	75–80 kcal

This kind of swap works well when you want to keep your mouth busy and enjoy a salty or tangy dip but do not want the base snack to take over your calorie budget for the day.

Portion Ideas For Salads, Snacks, And Drinks

You can treat cucumber as a low calorie building block in several ways through the day. Here are simple ideas that keep the math easy while you track intake.

Salad Portion Ideas

• Use half a medium cucumber in a side salad with leafy greens, a spoon of nuts, and a light vinaigrette. That adds near 15 calories from cucumber.
• Use one full medium cucumber in a big salad bowl with grilled chicken or chickpeas for a main meal. The cucumber still only adds about 30 calories, leaving room for protein and dressing.
• Mix cucumber with tomatoes, onions, a splash of olive oil, and a squeeze of lemon for a simple chopped salad that stays low in calories yet feels fresh and crisp.

Snack And Drink Portion Ideas

• Slice half a medium cucumber into sticks and pair with hummus or yogurt-based dip. Even if the dip adds 80–100 calories, the cucumber only adds around 15.
• Add a handful of thin cucumber slices to a glass of water with mint or citrus. You gain flavor with no meaningful calories.
• Keep a container of cucumber rounds in the fridge as a quick bite between meals when you want to chew something without reaching for sweets.

Tips For Tracking Cucumber Calories Without Obsessing

First, decide on one or two standard numbers you will use in your own log. Most people do well with 30 calories for a medium cucumber, 15 calories for half, and 15 calories for one cup of slices. Using the same numbers consistently matters more than chasing tiny differences between charts.

Next, weigh or measure a typical cucumber once or twice. Put a whole cucumber on a kitchen scale to see how close it sits to 200 grams, then match that to the serving sizes in your tracking app. After that, you can usually eyeball size and still stay close enough on paper.

Dressings and toppings deserve just as much attention as the cucumber itself. A heavy pour of creamy dressing or a large scoop of oily dip can turn a low calorie snack into a much denser plate. Measuring dressing with a spoon or small cup for a few days gives you a clear sense of how much energy you add on top of that 30 calorie vegetable.

Finally, let cucumber work with the rest of your eating pattern. It brings bulk and water with little energy, so it pairs well with lean protein, beans, whole grains, and healthy fats. If you want a wider picture of how low calorie foods link to body weight over time, you might like this calories and weight loss guide as a next step.