What does this tool do?
A recipe’s total macronutrients divide evenly across its servings. This calculator shows protein, carbohydrate and fat per serving, then converts them into calories using the standard 4, 4 and 9 kcal per gram factors.
The Formula
Per serving = total grams ÷ servings; calories = 4 × protein + 4 × carbs + 9 × fatFrequently Asked Questions
How do I calculate macros per serving?
Divide each total macro value by the number of equal servings. For example, 100 g of protein across four servings is 25 g of protein per serving.
Why does fat have more calories per gram?
Fat provides about 9 kcal per gram, compared with 4 kcal per gram for protein and carbohydrate. That is why a small amount of fat can change a recipe’s calorie total noticeably.