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Body Composition Formula

Body Recomposition Formula

The Body Recomposition Formula helps you strategically adjust your caloric intake relative to your Total Daily Energy Expenditure (TDEE) to simultaneously build muscle and lose fat, prioritizing nutrient timing and macronutrient balance.

By Orbyd Editorial · AI Fit Hub Team
Best Next MovePlanning

Body Recomposition Planner

Plan body-fat reduction pace, deficit targets, and protein needs around a timeline.

CalculatorOpen ->

On This Page

Formula

Copy the exact expression or work through it step by step below.

Recomposition Target = TDEE + Small Surplus Or Deficit Matched To Protein Target

Variables

RT

Recomposition Target

The recomposition target value plugged into the body recomposition calculation.

TDEE

TDEE

The tdee value plugged into the body recomposition calculation.

PT

Protein Target

The protein target value plugged into the body recomposition calculation.

CA

Calorie Adjustment

The calorie adjustment value plugged into the body recomposition calculation.

Step By Step

  1. 1

    Set the baseline case with the real calculator inputs.

    Weight Kg = 84, Body Fat Percent = 24.0%, Target Body Fat Percent = 18.0%, Weeks = 20

  2. 2

    Translate rates, periods, and cash values onto the same footing before combining them.

    Keep the body recomposition assumptions consistent instead of mixing monthly and annual views.

  3. 3

    Apply the formula and read the first calculator outputs, not just the headline assumption.

    The calculator lands with suggested daily calorie deficit at 338.05 and target scale weight at 77.85.

  4. 4

    Run one changed scenario so the formula is stress-tested before it is trusted.

    The body recomposition planner page is the fastest way to compare that second case.

Worked Example

Body Recomposition sample case

Weight Kg

84

Body Fat Percent

24.0%

Target Body Fat Percent

18.0%

Weeks

20

Recomposition Target = TDEE + Small Surplus Or Deficit Matched To Protein Target using weight kg 84, body fat percent 24.0%, target body fat percent 18.0%, weeks 20.

The calculator lands with suggested daily calorie deficit at 338.05 and target scale weight at 77.85.

Common Variations

Scenario variants are useful because fixed assumptions rarely survive contact with real life unchanged.
Use Body Recomposition Planner to compare the baseline result with one stressed case before relying on a single answer.

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Sources & References

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General fitness estimates — not medical advice. Consult a healthcare professional for medical decisions.