how many carbs in an orange?
1 3 grams of carbohydrate in one ounce, or 28g, of orange. 2  11 carbs in a small size orange. 3  16 carbs in an average size orange. 4  22 carbs in a large size orange. 5  12 carbs in 4 oz, or 114g, of oranges. 6  18 carbs in 6 oz, or 170g, of oranges. 7  21 carbs in 1 cup of orange segments/sections.