Could you please tell me how many calories are in one teaspoon of sugar? Many thanks.
In one level teaspoon of sugar has 16 calories and 4 grams of carbohydrate. One rounded teaspoon has 1 1/2 teaspoons and 24 calories with 6 grams of carbohydrate. Depends on how you measure one teaspoon i.e. measuring spoon or silverware spoon.