A Macro Calculator helps you estimate how much protein, carbohydrates, and fat you need each day based on your daily calorie goal. These nutrients are called macronutrients, or macros, because your body needs them in relatively large amounts.
Macro Calculator
Calculate your daily protein, carbohydrates, and fat based on your calorie goal.
Ratios are adjusted proportionally to total 100%.
Protein
150 g 600 kcal · 30%Carbs
200 g 800 kcal · 40%Fat
67 g 600 kcal · 30%This calculator provides estimates based on your calorie goal and selected macro ratios. Protein and carbohydrates provide approximately 4 calories per gram, while fat provides approximately 9 calories per gram. Individual nutritional needs vary. These results are for general information and are not a substitute for advice from a qualified healthcare professional.
Whether your goal is muscle gain, weight management, or maintaining your current weight, tracking macros can help you plan balanced meals and understand your daily nutrition.
How Does a Macro Calculator Work?
Enter your daily calorie goal, then adjust the protein, fat, and carbohydrate percentages using the ratio sliders. The calculator estimates how many grams of each macronutrient fit your selected calorie target.
- Protein: Supports muscle repair and growth.
- Carbohydrates: Provide energy for daily activities and exercise.
- Fat: Supports normal body functions and helps your body absorb certain vitamins.
How to Use the Macro Calculator
- Enter your daily calorie goal.
- Adjust the protein, fat, and carbohydrate ratios.
- Keep the percentages at a combined total of 100%.
- View your daily macro targets in grams and calories.
For calculation, protein provides 4 calories per gram, carbohydrates provide 4 calories per gram, and fat provides 9 calories per gram.
Important: Macro targets are estimates, not medical advice. Your needs depend on factors such as age, activity level, health, and goals. There is no single ideal macro ratio for everyone.