How much carbohydrate do you eat?

if you want to know the number of calories from carbohydrate in a food or a diet:

• determine the number of grams of carbohydrate
• multiply the grams of carbohydrate by 4 Calories per gram

for example: a diet that contains 130 grams of carbohydrate

130 grams x 4 Calories per gram = 520 Cal from carbohydrate