Macros, short for macronutrients, are the three main nutrients that provide your body with energy: protein, carbohydrates, and fat. Each plays a distinct role — protein builds and repairs muscle, carbohydrates fuel activity, and fat supports hormones and brain function.

What macro split is best for fat loss?

A high-protein split such as 40% protein, 35% carbs, and 25% fat is generally most effective for fat loss. Higher protein preserves muscle during a calorie deficit, increases satiety, and has a higher thermic effect than carbs or fat.

Should I track calories or macros?

Tracking macros provides more precision than tracking calories alone. Two people can eat identical calorie totals but achieve very different body composition results depending on their macro split. For serious body composition goals, macro tracking delivers better outcomes.

How much protein should I eat?

For active individuals, 1.6–2.2g of protein per kg of bodyweight is the evidence-based optimal range. During a fat loss phase, targeting the higher end (2–2.4g/kg) helps preserve lean muscle mass while in a calorie deficit.

Is macro tracking necessary?

Macro tracking is not strictly necessary for everyone, but it is highly effective for those with specific body composition goals. Even tracking for 2–4 weeks builds a solid understanding of portion sizes and food composition that improves long-term dietary habits.

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Macro Calculator – Calculate Your Protein, Carbs & Fats

Calculate your optimal protein, carbs, and fat intake based on your calorie target and fitness goals.

💡 Coach Tip: Macros matter more than just calories for body composition. Two people eating the same calories can look completely different based on their macro split. Protein is king for muscle retention.

Enter Your Details

Set your calorie target and preferences

Daily Calories

Don't know? Calculate here or use our TDEE Calculator

Body Weight (kg) - Optional

Used to calculate optimal protein (2g/kg for active individuals)

Diet Type

Your Macros

Daily macronutrient targets

Enter your details to calculate macros

Your personalized breakdown will appear here

What is a Macro Calculator and Why Should You Use One?

A macro calculator breaks your daily calorie target into specific grams of protein, carbohydrates, and fat — the three macronutrients that fuel every function in your body. Rather than only tracking total calories, macro tracking provides a more precise nutritional framework that can dramatically improve body composition results.

This macronutrient calculator is useful for anyone who wants more control over their nutrition — from bodybuilders optimising their protein carbs fats calculator split for competition to everyday gym-goers trying to maintain muscle while losing fat. Coaches use macro calculators to design tailored nutrition plans for clients, and athletes rely on them to fuel performance.

Two people eating 2,000 calories per day can achieve completely different body composition outcomes depending on their macro split. One eating 40% protein, 35% carbs, and 25% fat will retain far more muscle during a cut than someone eating 15% protein, 55% carbs, and 30% fat at the same calorie level. Getting your macros right is what separates average results from exceptional ones.

This calculator offers four evidence-based macro presets — Balanced, High Protein, Low Carb, and Keto — and adjusts your protein target automatically if you provide your bodyweight, ensuring optimal intake for muscle preservation or growth. Enter your daily calorie target (or calculate it first using our TDEE Calculator) and select the approach that best matches your goal.

How to Use This Macro Calculator

Enter your daily calorie target — if you don't know it, use our TDEE Calculator first.
Optionally enter your bodyweight in kg to get a protein target based on your lean mass needs.
Select your diet type: Balanced, High Protein, Low Carb, or Keto.
Click "Calculate My Macros" to instantly see your daily grams and calories for protein, carbs, and fat.
Use the results as your daily nutrition targets and adjust after 2–3 weeks based on progress.

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What Are Macronutrients?

Protein

4 calories per gram

Building blocks for muscle, enzymes, and hormones. Essential for recovery and maintaining lean mass during fat loss.

Sources: Chicken, fish, eggs, Greek yogurt, tofu, legumes

Carbohydrates

4 calories per gram

Primary energy source for high-intensity exercise. Stored as glycogen in muscles and liver for quick fuel.

Sources: Rice, oats, potatoes, fruits, vegetables, bread

Fat

9 calories per gram

Essential for hormone production, brain function, and nutrient absorption. Don't go below 20% of total calories.

Sources: Olive oil, nuts, avocado, fatty fish, eggs

Which Macro Split Should You Choose?

⚖️Balanced (30/40/30)

Best for: General fitness, maintaining weight, beginners

A well-rounded approach that works for most people. Good energy, adequate protein, flexible food choices.

💪High Protein (40/35/25)

Best for: Muscle building, fat loss, athletes

Higher protein preserves muscle during cuts and supports growth during bulks. Requires more planning.

🥩Low Carb (35/20/45)

Best for: Fat loss, insulin sensitivity, satiety

Higher fat and protein keep you fuller. Works well for sedentary individuals or those who feel sluggish on carbs.

🥑Keto (25/5/70)

Best for: Rapid fat loss, epilepsy, metabolic conditions

Very low carb puts body in ketosis. Effective but restrictive. Not ideal for high-intensity athletes.

How To Hit Your Macro Targets

Plan Protein First

It's hardest to hit. Build meals around protein sources.

Add Carbs Strategically

Place carbs around workouts for energy and recovery.

Fill With Healthy Fats

Use remaining calories for fats to hit your target.

Track For 2 Weeks

Use an app to learn portion sizes, then estimate.

Frequently Asked Questions

Calorie Calculator

Find your daily calorie target

Protein Calculator

Optimize protein intake

TDEE Calculator

Total daily energy expenditure

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