Half a cucumber (about 100–150 g) gives roughly 15–25 calories, depending on size and peel.
Water Content
Typical Half
Calories
Basic Half
- Standard slicing type
- Peel on for crunch
- Weigh 120 g for accuracy
Low effort
Seedless Half
- English/hothouse style
- Usually longer and lighter
- Log 125–200 g
Mild flavor
Mini Half
- Snack-size cucumber
- Half is ~50–70 g
- 5–10 kcal total
Portion control
Calories In Half A Cucumber: Quick Reference
Here’s the simple math that fits most kitchens. Cucumber with peel runs about 15 kcal per 100 g. A half from a typical market piece weighs near 100–150 g, so you land in the 15–25 kcal zone. Seedless types lean a touch lighter for the same length, while mini styles come in far below that range.
What Counts As “Half” For Different Cucumbers
Portion size varies by variety and by what you trim. A standard slicing cucumber is short and stout. An English or hothouse one is long and slimmer, often wrapped and seedless. Minis are dense and crisp but small. If you remove the peel, you shave off a gram or two; if you scoop seeds, you lower weight a bit more.
The fastest way to be precise is to set half the piece on a scale. No scale? Use measures that convert to grams. A heaping cup of slices weighs near 100–120 g; a level half-cup sits close to 50–60 g. Those cues make calorie math reliable without special tools.
Early Table: Typical Weights And Calories
This table groups common halves by style so you can log them quickly. Values are based on 15 kcal per 100 g for raw cucumber with peel; where a measure is listed, it follows U.S. consumer labeling norms.
| Portion (Half) | Approx. Weight (g) | Calories (kcal) |
|---|---|---|
| Slicing cucumber, peel on | 100–150 | 15–25 |
| English/seedless cucumber | 125–200 | 19–30 |
| Mini/snack cucumber | 50–70 | 8–11 |
| Half-cup slices (level) | 50–60 | 8–9 |
| 100 g reference (any type) | 100 | 15 |
Once your intake matches your daily calorie needs, cucumber works well as a low-energy filler that still adds crunch.
Why The Calorie Range Is So Low
Cucumber is nearly all water with a bit of fiber and trace carbs. That’s why a generous half contributes only a handful of calories. The peel brings a slight bump in fiber and a tiny edge in minerals. If you’re tracking closely, keep the peel status consistent day to day so your log stays comparable.
Trusted Reference Points You Can Use
The U.S. Food and Drug Administration lists a small portion of cucumber at 99 g and 10 kcal on its raw-vegetable chart, which lines up with the 15 kcal per 100 g rule of thumb. You can view the specific row under “Vegetables Nutrition Facts—Raw” on the FDA page. Here’s the source for that poster: FDA raw vegetables. You’ll also find a detailed, USDA-derived panel for 100 g of cucumber with peel here: MyFoodData 100 g entry. Both references back the math used across this article.
Portion Math You Can Do In Seconds
Weigh your half in grams. Multiply by 0.15. That’s it. If the number looks messy, round to the nearest whole calorie; your daily log won’t be thrown off by one digit. No scale handy? Use the quick measures below and pick the closest match.
Handy Visual Cues
- Short, stocky half (about palm length): ~120 g → ~18 kcal
- Long, slender seedless half: ~160 g → ~24 kcal
- Mini half the size of your palm: ~60 g → ~9 kcal
- Level half-cup of slices: ~55 g → ~8 kcal
Peeled Vs. Unpeeled: Does It Matter?
Calories barely move. You’ll see a one-calorie swing at most for a half in the common weight range. Keeping the peel adds a touch of fiber and a firmer bite. Removing it softens texture and trims a gram or two from weight, which can cut a fraction of a calorie in the math. For consistency, log it the same way each time.
Seedless, Slicing, And Mini Types
Seedless styles are longer and usually lighter per inch because of the core structure. A half can weigh anywhere from 125 to 200 g. Slicing types are shorter and a bit denser, so the same half often falls closer to 100–150 g. Mini cucumbers are the outlier—small halves land near 50–70 g, which is why they’re handy for tight calorie budgets.
Hydration, Fiber, And Sodium
Even with the tiny calorie count, cucumber helps with fluid intake. The water content is high, and the taste plays well with salty foods, which can help you balance a meal. If salt intake is a concern, season with lemon juice, herbs, or vinegar in place of heavy dressings. This keeps the calorie count of the half intact.
How To Log A Half Accurately
Step 1: Decide The Cut
Are you eating the top or the middle? If it’s the middle, seeds may be looser and hold a bit more water. That’s a tiny weight change, not a big calorie swing, but it explains why the same half can vary a couple grams.
Step 2: Pick A Consistent Measure
Stick with either grams or cups. Switching back and forth introduces more guesswork. If you keep grams as your base, the 0.15 multiplier makes your log fast and tidy.
Step 3: Account For Add-Ons
Plain halves are barely any calories. The extras are where the numbers move. A teaspoon of olive oil adds ~40 kcal; a tablespoon of creamy dressing can add 60–80 kcal. A spoon of plain yogurt sits near 10–15 kcal. If you want the crunch without the jump, go for acids (vinegar, lemon) and herbs.
Flavor Boosts That Don’t Blow The Count
- Rice vinegar, a squeeze of lemon, and black pepper
- Fresh dill or mint with a pinch of sea salt
- Chili flakes and a drizzle of lime
- Garlic and a spoon of nonfat yogurt for a quick dip
Late Table: Popular Prep Styles And Estimated Calories
Here are common ways people eat a half, with simple add-ins factored in so your log matches the plate.
| Preparation | Typical Add-Ins | Calories (kcal) |
|---|---|---|
| Plain half, peel on | — | 15–25 |
| Half with 1 tsp olive oil | Oil + salt | ~55 |
| Half with 1 tbsp creamy dressing | Dressing | ~75–100 |
| Half with 2 tbsp nonfat yogurt | Yogurt + herbs | ~25–35 |
| Half in a ½-cup salad | Tomato, onion, vinegar | ~20–35 |
How This Lines Up With Labeling Conventions
U.S. consumer tools often use grams or cups to make serving sizes clear. The FDA’s vegetable poster lists cucumber at about 99 g per small portion with 10 kcal, which matches the 15 kcal per 100 g baseline used above. That consistency lets you swap between your kitchen scale and cup measures without confusion.
Simple Ways To Use A Half In Meals
Snack Plate
Slice into sticks and serve with a spoon of Greek yogurt, lemon, and dill. The heft stays low while the plate feels full.
Protein Bowl
Dice the half, toss with cherry tomatoes, herbs, and a lean protein. Dress with vinegar and a touch of olive oil if you’ve got room in your budget.
Grain Side
Fold thin slices into warm grains to add crunch and moisture. Season with citrus and cracked pepper so you don’t need a heavy dressing.
Answers To The Common “But What If…?”
If I Scoop The Seeds
You’ll trim a few grams of water and drop the total by a calorie or two. Not a big swing.
If I Peel Thickly
Thick peeling removes a bit more mass. Expect one more calorie shaved off for halves in the 100–150 g range.
If My Half Is From The Giant End
Large halves can run closer to 180–200 g, especially on seedless types. Use the 0.15 multiplier and log it confidently.
Method Notes
All calorie math in this guide uses 15 kcal per 100 g for raw cucumber with peel, consistent with USDA-based data. The FDA poster citation provides a second check against common consumer portions. The range bands for half portions reflect real-world weights from common varieties and household measures.
Want more practical menu ideas that keep numbers tidy? Try our low calorie foods round-up for easy swaps.