Macronutrient Calculator
Calculate your daily protein, carbohydrate, and fat targets based on your TDEE and goals.
Ratio: 30% protein / 40% carbs / 30% fat
What Is the Macronutrient Calculator?
Macronutrients (protein, carbohydrates, fat) provide calories. Protein and carbs have 4 kcal/g; fat has 9 kcal/g. Optimal macro ratios depend on your fitness goals.
Formula
How to Use
Enter your daily calorie target and select your goal (weight loss, maintenance, muscle gain, or keto). The calculator shows daily grams of protein, carbohydrates, and fat.
Example Calculation
2000 kcal for muscle gain: 30% protein (150g), 40% carbs (200g), 30% fat (67g) = 2001 kcal.
Understanding Macronutrient
Macronutrient Calculator is a free online tool that helps you solve real-world problems instantly. Whether you are a student, professional, or curious learner, this calculator provides accurate results with clear explanations.
Our tool uses proven mathematical formulas and algorithms to deliver precise calculations. All computations happen in your browser — no data is sent to any server.
Bookmark this page for quick access whenever you need to perform macronutrient calculator calculations.
Frequently Asked Questions
How much protein do I need?
For muscle building, 1.6–2.2g of protein per kg of body weight is well-supported by research. For general health, 0.8g/kg is the minimum.
What is a ketogenic diet?
Keto uses a very high fat (70%), moderate protein (25%), and very low carb (5%) ratio to induce ketosis.
Should I count fiber?
Dietary fiber is a carbohydrate but provides minimal calories and improves satiety. Many people track net carbs (total carbs minus fiber).