🍎 Your Body Details
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🎯 Your Daily Macro Targets
🍽️ Per Meal Breakdown (Based on Your Macros)
How to Calculate Your Macros
Macronutrients — protein, carbohydrates and fat — are the three nutrients that provide calories. Tracking macros rather than just calories gives you more precise control over body composition. Our macro calculator uses the Mifflin-St Jeor formula (the most accurate validated method) to calculate your calorie needs then distributes them across protein, carbs and fat based on your specific goal.
Why Protein Is the Most Important Macro
Protein is essential for muscle repair, immune function and keeping you full. For weight loss higher protein intake (1.6-2.2g per kg of body weight) preserves muscle mass while in a calorie deficit. For muscle building adequate protein (1.6-2.0g per kg) provides building blocks for new muscle tissue. Our calculator automatically sets protein higher than standard guidelines to support both goals.
Understanding Your Macro Split
- Standard balanced — 30% protein, 40% carbs, 30% fat
- High protein — 35% protein, 35% carbs, 30% fat (for muscle building)
- Low carb — 30% protein, 20% carbs, 50% fat (for fat loss)
- Keto — 25% protein, 5% carbs, 70% fat (ketogenic diet)
- Each macro provides: protein 4 cal/g, carbs 4 cal/g, fat 9 cal/g
Macro Calculator — Complete Nutrition Guide
Macronutrients — protein, carbohydrates and fats — are the three main categories of nutrients that provide energy and building materials for your body. Getting your macros right is the difference between achieving your body composition goals and spinning your wheels for months. Our macro calculator uses the scientifically validated Mifflin-St Jeor equation to calculate your exact daily calorie needs then divides them into optimal macro targets for your specific goal.
What Are Macros and Why Do They Matter?
Every food you eat contains some combination of protein, carbohydrates and fats. Each macronutrient serves a different purpose in your body and provides a different amount of energy per gram. Understanding this is fundamental to achieving any nutrition goal.
| Macronutrient | Calories per Gram | Primary Role | Best Sources |
|---|---|---|---|
| Protein | 4 cal/g | Muscle repair, growth, satiety | Chicken, fish, eggs, Greek yogurt, tofu |
| Carbohydrates | 4 cal/g | Primary energy, brain fuel | Rice, oats, sweet potato, fruit, vegetables |
| Fats | 9 cal/g | Hormones, vitamins, brain health | Avocado, nuts, olive oil, fatty fish, eggs |
Optimal Macro Ratios by Goal
There is no single perfect macro split for everyone. The right ratio depends entirely on your goal — whether losing fat, building muscle, improving athletic performance or simply maintaining health. Research consistently shows that higher protein intakes support better body composition regardless of the overall calorie target.
| Goal | Protein | Carbohydrates | Fats | Why |
|---|---|---|---|---|
| Fat Loss | 35-40% | 30-35% | 25-30% | High protein preserves muscle during deficit |
| Muscle Gain | 30-35% | 40-45% | 20-25% | Higher carbs fuel training and recovery |
| Athletic Performance | 25-30% | 45-55% | 20-25% | Maximum carbs for sustained energy output |
| General Health | 25-30% | 40-50% | 25-30% | Balanced approach for sustainable maintenance |
How to Calculate Your Daily Protein Target
Protein is the most important macro for body composition. Research consistently shows that eating 1.6-2.2 grams of protein per kilogram of body weight produces the best results for both fat loss and muscle gain. This is higher than general health guidelines but well supported by sports science research.
Best High-Protein Foods — Protein per 100g
| Food | Protein per 100g | Calories per 100g | Best For |
|---|---|---|---|
| Chicken Breast | 31g | 165 cal | Lean muscle building |
| Tuna (canned) | 29g | 132 cal | Budget-friendly fat loss |
| Greek Yogurt | 17g | 97 cal | Snacks and breakfast |
| Eggs | 13g | 155 cal | Complete amino acid profile |
| Lentils (cooked) | 9g | 116 cal | Plant-based protein + fiber |
| Tofu | 8g | 76 cal | Vegan / vegetarian option |
Carbohydrates — The Most Misunderstood Macro
Carbohydrates are not the enemy — they are your body's preferred energy source. The key is choosing quality carbs like whole grains, vegetables, fruits and legumes over refined carbs like white bread, candy and sugary drinks. Quality carbs provide fiber, vitamins and sustained energy. Refined carbs spike blood sugar and contribute to fat storage.
How to Hit Your Macro Targets Every Day
- Track with an app: MyFitnessPal, Cronometer or Lose It make tracking easy — scan barcodes and log meals in seconds. Tracking for even 4-6 weeks builds lasting nutritional awareness.
- Meal prep on Sundays: Preparing protein sources (grilled chicken, boiled eggs, cooked legumes) in bulk makes hitting protein targets effortless during the week.
- Prioritize protein at every meal: Build each meal around a protein source first then add carbs and fats. This naturally keeps protein intake high without obsessive tracking.
- Use our TDEE Calculator: Your calorie target changes as your weight changes. Recalculate using our TDEE Calculator every 4-6 weeks to stay accurate.
- Track calories burned: Use our Calories Burned Calculator to account for exercise and adjust your daily intake accordingly.