Macronutrient Calculator – – Protein, Carbs & Fat Ratio
Calculate your daily macros including protein, carbs, and fat for weight loss or muscle gain. Easy macro calculator online.
Macronutrient Calculator
Protein, carbs & fat targets tailored to your goal — evidence-based (ISSN/ACSM)
Personal Details
Activity Level
Primary Goal
Advanced Options
Your Daily Nutrition Plan
| Metric | Value |
|---|
Related
What Are Macronutrients?
Macronutrients are the major nutrients your body needs in large amounts to function properly:
- Protein: Builds and repairs muscles, tissues, and enzymes.
- Carbohydrates: Provide energy for your brain and muscles.
- Fats: Support hormones, brain health, and energy storage.
- Fiber: Improves digestion and helps maintain blood sugar levels.
- Calories: Measure the total energy your body uses daily.
How the Calculator Works
Our calculator uses your age, gender, weight, height, and activity level to determine:
- Total Daily Energy Expenditure (TDEE) – total calories you need per day.
- Ideal Macronutrient Ratios based on your fitness goal:
- Muscle Gain → Higher protein & carb ratio
- Maintenance → Balanced macros
- Fat Loss → Moderate protein, lower carbs
You can choose Auto Mode (recommended ratios) or Manual Mode (set your own preferences).
Why Macronutrient Balance Matters
A balanced intake of protein, carbs, and fats ensures:
- Better metabolism and muscle growth
- Steady energy levels throughout the day
- Improved fat loss without muscle loss
- Enhanced digestion and nutrient absorption
How to Use the Calculator
- Enter your basic details (age, gender, weight, height).
- Choose your goal and activity level.
- Click “Calculate” to get your daily nutrient breakdown.
- View your recommended calories and macros (protein, carbs, fats, fiber).
- Print or save your summary for meal planning.
Example of a Balanced Macro Plan
| Goal | Protein | Carbs | Fats | Fiber |
|---|---|---|---|---|
| Muscle Gain | 30% | 50% | 20% | 25–30g/day |
| Fat Loss | 35% | 40% | 25% | 25–30g/day |
| Maintenance | 25% | 50% | 25% | 25–35g/day |
Tips for a Healthy Diet
- Include protein in every meal (e.g., eggs, pulses, lean meat, tofu).
- Prefer complex carbs like oats, brown rice, and whole grains.
- Use healthy fats such as nuts, olive oil, and avocados.
- Drink enough water — at least 2–3 liters daily.
- Avoid skipping meals; eat mindfully and consistently.
FAQ
How much protein do I need per day?
Most adults need 0.8–2.0 grams per kg of body weight depending on activity level.
Can I use this calculator for weight loss or muscle gain?
Yes — it automatically adjusts your calorie and macronutrient needs based on your goal.
Is the calculator suitable for vegetarians or vegans?
Absolutely. You can meet your macro needs through plant-based sources like lentils, tofu, soy, nuts, and seeds.
Does this calculator include fiber and calories?
Yes — it gives a complete daily breakdown of calories, protein, carbohydrates, fats, and fiber.