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Macro Calculator

Find Your Perfect Macro Split

Your optimal protein, carb, and fat breakdown based on your calorie target and fitness goal. Results update instantly.

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Your Calorie Target & Goal

Not sure? Use the TDEE Calculator
2,200 cal / day
Protein
30%
175g
Carbs
40%
220g
Fat
30%
73g
Macro Split
Protein 30% Carbs 40% Fat 30%
175g
Protein
700 cal (4 cal/g)
Top sources: Chicken breast, Greek yogurt, eggs, salmon, tofu, lentils, whey protein
220g
Carbs
880 cal (4 cal/g)
Top sources: Oats, brown rice, sweet potatoes, bananas, whole grain bread, quinoa
73g
Fat
657 cal (9 cal/g)
Top sources: Avocado, olive oil, almonds, peanut butter, salmon, dark chocolate, eggs

These macros are a starting point. Adjust based on how your body responds over 2-3 weeks. Protein is the most important macro to hit consistently.

Learn

What Are Macros?

Everything you need to know about macronutrients and why they matter for your goals.

Macronutrients ("macros") are the three main categories of nutrients that provide calories:

  • Protein (4 calories per gram) -- builds and repairs muscle, supports immune function, and keeps you feeling full.
  • Carbohydrates (4 calories per gram) -- your body's preferred energy source, especially for high-intensity exercise and brain function.
  • Fat (9 calories per gram) -- essential for hormone production, vitamin absorption, and cell membrane health.

Every food you eat is a combination of these three macros (plus micronutrients like vitamins and minerals). Tracking macros gives you more control over your body composition than counting calories alone.

  • Fat Loss: 35% protein / 35% carbs / 30% fat -- higher protein preserves muscle mass during a deficit.
  • Maintenance: 30% protein / 40% carbs / 30% fat -- balanced approach for sustaining current weight.
  • Muscle Gain: 30% protein / 45% carbs / 25% fat -- higher carbs fuel training and recovery.
  • Keto: 25% protein / 5% carbs / 70% fat -- forces your body to use fat as its primary fuel source.
  • Athletic Performance: 25% protein / 50% carbs / 25% fat -- carb-heavy for endurance and glycogen stores.

These are evidence-based starting points. Individual needs vary based on genetics, training intensity, and personal preference.

Tracking macros is simpler than it seems. Here is a practical approach:

  • Step 1: Calculate your TDEE (use our TDEE Calculator).
  • Step 2: Use this macro calculator to get your target grams.
  • Step 3: Track your food for 1-2 weeks using an app like MyFitnessPal or Cronometer.
  • Step 4: Focus on hitting protein first, then fill in carbs and fats.
  • Step 5: Adjust after 2-3 weeks based on results (weight, energy, performance).

You do not need to be perfect. Hitting within 5-10g of each target is more than sufficient for most people.

Of the three macros, protein is the most important to track consistently:

  • Thermic effect: Your body burns 20-30% of protein calories just digesting it (vs. 5-10% for carbs, 0-3% for fat).
  • Satiety: Protein is the most filling macronutrient, reducing hunger and cravings.
  • Muscle preservation: Adequate protein prevents muscle loss during a calorie deficit.
  • Recovery: Protein provides the amino acids needed to repair muscle after training.

For most active adults, 0.8-1.2g of protein per pound of body weight is optimal. Use our Protein Calculator for a personalized recommendation.

Read: Macro Tracking for Beginners

Related Calculators

Your macros are one piece of the puzzle. These tools work together.

TDEE Calculator

Find your total daily energy expenditure -- the calorie number that feeds this macro calculator.

BMR Calculator

Your basal metabolic rate -- how many calories you burn at complete rest.

Protein Intake

Personalized daily protein target based on weight, goal, and activity level.

Calorie Deficit

Calculate the right deficit for safe, sustainable fat loss with projected timeline.

Level Up Your Nutrition

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How the Macro Calculator Works

This calculator uses evidence-based macronutrient ratios tailored to your specific fitness goal. Protein is calculated first based on your body weight (grams per pound), then carbohydrates and fat are distributed according to your goal's recommended percentages.

The Science Behind Macro Splits

Research consistently shows that macro distribution matters beyond total calories. A 2018 meta-analysis in the British Journal of Sports Medicine found that higher protein diets (1.0-1.2g/lb) preserve more lean mass during caloric restriction. Carbohydrate needs scale with training intensity -- endurance athletes need more, while sedentary individuals need less.

Flexible Dieting (IIFYM)

The "If It Fits Your Macros" approach means you can eat any food as long as it fits within your daily macro targets. While whole, nutrient-dense foods should form the foundation of your diet, this flexibility makes macro tracking sustainable long-term. No foods are off-limits -- it is all about balance and hitting your numbers.

Adjusting Over Time

Your macro targets are a starting point, not a fixed prescription. Track your results for 2-3 weeks, then adjust: if you are losing weight too fast, add calories from carbs or fat; if not losing, reduce by 5-10%. Protein should stay consistent regardless of calorie changes.