Foods

How many carbs are in a cucumber?

A standard serving of cucumber with peel (85g) has about 2.5g of carbohydrate. The carb count is so low that cucumber is effectively a free food in most eating plans.

Carbs by portion

Net carbs

An 85g serving of cucumber has about 2.5g of net carbs. The USDA data for this entry does not include a fiber value, but cucumbers typically contain about 0.5g of fiber per 100g, so the net carb count is essentially the same as total carbs. See the net carbs guide for how fiber affects the calculation.

For diabetes

Cucumber is among the easiest vegetables to include without carb counting. An 85g serving has only 2.5g of carbs. A whole large cucumber at about 300g has around 9g of carbs total. The only time cucumber raises carbs significantly is in pickled forms with added sugar, such as bread-and-butter pickles, which can add 7 to 10g of carbs in a small serving. See the diabetes carb-counting guide.

Keto and low carb

Cucumber fits keto without question. An 85g serving has about 2.5g of net carbs. Even a large whole cucumber stays under 10g of net carbs, leaving plenty of room in a 20 to 30g daily budget.

Good to know

The peel adds a small amount of fiber and nutrients. Peeled cucumbers are very slightly lower in carbs but the difference is negligible. English cucumbers (the long, thin, seedless kind) have a similar carb count to standard cucumbers. Pickling changes the carb profile: dill pickles add little sugar and remain very low-carb, while sweet pickles and bread-and-butter pickles are made with brine that includes sugar.

Full nutrition (per 100g)

• Calories: 0 kcal
• Carbohydrate: 2.95g
• Fiber: 0g
• Sugars: n/ag
• Protein: 0.62g
• Fat: 0.18g

Frequently asked questions