An average cucumber, measuring 8 inches in length, weighs approximately 11 ounces (0.6875 pounds), depending on the variety. One medium-sized cucumber equals 1/2 cup of peeled, sliced or chopped cucumber. Medium cucumbers contain 45 calories, 11 grams of carbohydrates, 2 grams of dietary fiber and 2 grams of protein.
Cucumbers are grouped into three main categories: slicing, pickling and novelty. Most slicing cucumbers measure 6 to 9 inches in length. Pickling cucumbers are typically 3 to 6 inches long and weigh 2 to 7 ounces. Novelty cucumbers, such as the English cucumber which normally weigh 10 to 14 ounces, reach 1 to 2 feet in length and 1.5 to 2 inches in diameter.