Macro Calculator
Use this free Macro Calculator to estimate your daily calories, protein, carbs, and fat intake for weight loss, maintenance, or muscle gain.
Calculate Your Macros
Enter your body details to get your daily macro targets instantly.
Your Daily Macro Result
Estimated daily targets based on your body stats, activity, and goal.
What is a Macro Calculator?
A Macro Calculator helps you estimate how many calories, protein, carbohydrates, and fats you should eat every day based on your body and fitness goal. Instead of guessing your nutrition, you can use this tool to get a practical daily target.
Macros, or macronutrients, are the three main nutrients your body uses for energy and recovery:
- Protein helps support muscle repair and recovery.
- Carbohydrates provide energy for movement and workouts.
- Fats support hormones, brain health, and overall balance.
How It Works
This calculator first estimates your BMR (Basal Metabolic Rate), which is the energy your body uses at rest. Then it calculates your TDEE (Total Daily Energy Expenditure) based on your activity level.
After that, it adjusts calories depending on your goal:
- Fat Loss: Lower calorie target
- Maintain: Balanced calorie target
- Muscle Gain: Slight calorie increase
Macro Calculator for Weight Loss
For weight loss, this tool reduces your calorie target while still giving you a balanced macro split. This can help you stay consistent while keeping enough protein, carbs, and fats in your daily diet.
Macro Calculator for Muscle Gain
If your goal is muscle gain, the calculator increases your calories slightly and gives you a balanced starting point for protein, carbs, and fats to support training and recovery.
Why Protein, Carbs, and Fats Matter
Protein
Protein supports muscle maintenance, recovery, and overall body repair.
Carbohydrates
Carbs are your body’s main energy source, especially for activity and exercise.
Fats
Healthy fats are important for hormones, energy balance, and long-term health.
Balanced Nutrition
A good macro split can help make your daily diet more structured and easier to follow.
FAQ
What is macro?
Macro means macronutrients — protein, carbohydrates, and fats.
How to calculate macros?
You calculate macros by estimating calorie needs first, then splitting those calories into protein, carbs, and fats.
Best macro ratio?
A balanced 30/40/30 split is a practical starting point for many users.
Is this accurate?
It gives a useful estimate and a strong starting point, but real needs can vary slightly from person to person.