Body Recomposition Macro Calculator

Enter your body weight and TDEE to calculate science-backed macro targets optimised for simultaneous fat loss and muscle gain.
Luis GonzalezCreated by Luis GonzalezLast updated:

How to Use This Calculator

  1. 1

    Select your Weight Unit

    Choose Pounds (lbs) or Kilograms (kg). This determines the unit used for the Body Weight input.

  2. 2

    Enter your Body Weight

    Input your current body weight in the selected unit. This is used to calculate your daily protein target.

  3. 3

    Enter your TDEE (Total Daily Energy Expenditure)

    Provide your total daily calorie burn in kcal. This is used to calculate fat and carbohydrate targets.

  4. 4

    Review your results

    The calculator displays six primary result cards, an interactive insights panel with macronutrient calorie percentages, and a visual macro ring.

Example Calculation

An active individual weighing 175 lbs with a TDEE of 2,800 kcal wants to optimize their body recomposition macros.

Weight Unit

Pounds (lbs)

Body Weight

175

TDEE (Total Daily Energy Expenditure)

2800

Results

Daily Protein

159g

Daily Carbohydrates

345g

Daily Fat

87g

Protein Calories

635 kcal

Carb Calories

1381 kcal

Fat Calories

784 kcal

Tips

Adjust for Activity Level Changes

If your exercise routine or daily activity significantly changes, re-evaluate your TDEE and recalculate your macros to maintain optimal recomposition progress.

Prioritize Protein Intake

For body recomposition, consistently hitting your protein target is crucial for muscle preservation and growth, targeting 2.0 grams per kilogram (approx. 0.91 g/lb) of body weight.

Monitor Progress and Adapt

Body recomposition is a dynamic process. Track your body composition changes every 2-4 weeks and use the recent calculation history feature to compare scenarios.

Optimizing Macronutrients for Muscle Growth and Fat Loss

Achieving body recomposition, the simultaneous gain of muscle and loss of fat, is a highly sought-after goal in fitness.

This Body Recomposition Macro Calculator provides a personalized breakdown of protein, carbohydrates, and fats, tailored to support your body's ability to build lean mass while shedding excess adipose tissue.

For optimal results, protein intake is calibrated to 2.0 grams per kilogram of body weight, ensuring muscle protein synthesis is prioritized.

The Logic Behind Body Recomposition Macros

Body recomposition isn't about extreme dieting but strategic fueling.

The calculator operates on the principle of providing sufficient energy to support intense training and recovery while creating an optimal caloric environment.

It derives macronutrient targets based on your Total Daily Energy Expenditure (TDEE) and body weight.

The calculation formulas used in this tool are:

Weight (kg) = Weight (lbs) / 2.20462 (if input is in lbs)
Protein (g) = Weight (kg) × 2.0
Fat (g) = TDEE (kcal) × 0.28 / 9
Carbohydrates (g) = (TDEE (kcal) - (Protein (g) × 4) - (Fat (g) × 9)) / 4

These formulas provide a scientifically sound starting point that can be adjusted based on individual response and activity levels.

💡 If you're unsure about your caloric expenditure, our Resting Energy Expenditure (REE) Calculator can help you estimate your baseline metabolic rate.

Crafting a Body Recomposition Meal Plan

Consider an individual weighing 175 lbs with a TDEE of 2,800 kcal who wants to optimize their daily macronutrient targets.

Here's how the calculation unfolds:

  1. Calculate Weight in kg: 175 lbs / 2.20462 ≈ 79.38 kg.
  2. Calculate Protein: 79.38 kg × 2.0 g/kg = 159 grams (providing 635 kcal).
  3. Calculate Fat: 2,800 kcal × 0.28 = 784 kcal from fat, which equals 87 grams of fat (784 / 9).
  4. Calculate Carbohydrates: Remaining calories = 2,800 kcal - 635 kcal - 784 kcal = 1,381 kcal. Dividing by 4 kcal/g gives 345 grams of carbohydrates.

Therefore, for a 175-lb individual with a 2,800 kcal TDEE, the recommended daily macros are 159g Protein, 345g Carbohydrates, and 87g Fat.

💡 Understanding how many calories you burn through digestion is also vital. Our Thermic Effect of Food (TEF) Calculator can help you refine your TDEE by accounting for the energy expended during food processing.

Dietary Context and Professional Interpretation

Fitness coaches and registered dietitians utilize body recomposition macro outputs as a starting point for personalized nutrition plans.

They look for high protein intake, typically around 0.8 to 1.0 grams per pound of body weight, to support muscle retention.

Carbohydrate and fat values are then assessed based on training intensity and individual preference.

Professionals interpret these numbers as flexible guidelines, monitoring client progress every 2-4 weeks and making adjustments as needed.

Frequently Asked Questions

What is body recomposition?

Body recomposition is the process of simultaneously losing fat and gaining muscle mass. It's often pursued by individuals who are relatively new to resistance training or those returning after a break, requiring a carefully managed caloric intake, adequate protein, and strength training.

How much protein is ideal for body recomposition?

For effective body recomposition, our calculator uses 2.0 grams of protein per kilogram of body weight (roughly 0.91 grams per pound), ensuring optimal muscle protein synthesis and satiety.

Can I achieve body recomposition in a calorie deficit?

Yes, body recomposition is possible in a calorie deficit, especially for beginners or those with higher body fat percentages. A slight deficit combined with high protein intake and resistance training encourages fat loss while preserving muscle.

How long does it take to see results from body recomposition?

Visible results from body recomposition vary, but most individuals start to notice changes within 8 to 12 weeks of consistent effort. Significant changes often take 6 months to a year or more.