Calorie Macro Calculator

How Macronutrient Calculations Work

Each of the core macronutrients contains a specific quantity of energy per gram:Protein (4 kcal/g), Carbohydrates (4 kcal/g),Fat (9 kcal/g), and Alcohol (7 kcal/g).

Under Net Carbohydrate guidelines, dietary fiber (2 kcal/g) and sugar alcohols (typically ~1.6 kcal/g) are subtracted from total carbohydrates, allowing ketogenic or low-carb diets to isolate the net carbs that impact blood glucose.