Vegetable

How much fiber is in cucumber?

Cucumber has 0.9 g of fiber per 1/2 medium (150 g). That is 3% of the daily value and a low amount for a vegetable.

0.9g

per 1/2 medium

0.6g

per 100 g

daily value

#52of 60

vegetables

Soluble vs insoluble

Soluble 0.2g 22% Insoluble 0.7g 78%

The split is approximate and comes from USDA SR Legacy analyses where available. Soluble fiber dissolves into a gel and is the type most linked to cholesterol and blood sugar effects. Insoluble fiber adds bulk and keeps things moving.

About cucumber and fiber

Cucumber is about 95 percent water, so half a cucumber is under 1 gram of fiber. Leaving the skin on keeps most of what there is.

Counts toward plant diversityLow FODMAP at this serving

How cucumber compares to other vegetables

Per typical serving. The highest vegetable in the database is artichoke at 6.9 g.

Food	Serving	Fiber	Per 100 g	% DV
Raw Spinach	2 cups	1.3 g	2.2 g	5%
Kimchi	1/2 cup	1.2 g	1.6 g	4%
Olives	10 olives	1.1 g	3.3 g	4%
Radishes	1/2 cup sliced	0.9 g	1.6 g	3%
Cucumber	1/2 medium	0.9 g	0.6 g	3%
Mushrooms	1 cup sliced	0.7 g	1 g	3%
Arugula	2 cups	0.6 g	1.5 g	2%

All 60 vegetables ranked by fiber

Servings to reach a daily goal

28×

servings of cucumber to reach 25 g, the adequate intake for adult women

43×

servings of cucumber to reach 38 g, the adequate intake for adult men

Nobody should get all their fiber from one food. Gut bacteria respond to variety, and the fiber calculator shows a mixed day that reaches your number.

USDA entries for cucumber

Grams of fiber per 100 g from USDA FoodData Central (snapshot 2026-10-11). Different preparations and varieties explain the spread.

USDA description	Fiber / 100 g	Soluble	Insoluble
Cucumber, peeled, raw	0.7 g	–	–
Cucumber, with peel, raw	0.5 g	–	–
Cucumber, raw	0.5 g	–	–
Pickles, cucumber, dill or kosher dill	1 g	–	–
Cucumber, cooked	0.6 g	–	–
Pickles, cucumber, sour	1.2 g	–	–
Cucumber and vegetable namasu	0.6 g	–	–
Pickles, cucumber, sour, low sodium	1.2 g	–	–

Frequently asked questions

How much fiber is in cucumber?

1/2 medium of cucumber, about 150 grams, contains 0.9 grams of dietary fiber. That is 0.6 grams of fiber per 100 grams and 3% of the 28 gram daily value.

Is cucumber high in fiber?

Not especially. Cucumber has 0.9 g per serving, which ranks 52 of 60 vegetables in the FiberUp database. It still counts toward plant diversity, but the fiber in a meal will come from elsewhere.

Is the fiber in cucumber soluble or insoluble?

About 22% of the fiber in cucumber is soluble (0.2 g) and 78% is insoluble (0.7 g). Soluble fiber forms a gel that slows digestion and feeds gut bacteria; insoluble fiber adds bulk and speeds transit.

How many servings of cucumber would reach a daily fiber goal?

It would take about 28 servings to reach 25 g (the adequate intake for adult women) and 43 servings to reach 38 g (adult men). Spreading fiber across several foods is easier and better for gut bacteria diversity.

Values are per typical serving from USDA FoodData Central and standard references, rounded to one decimal. Actual fiber varies with variety, ripeness, and preparation. This is general nutrition information, not medical advice.