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Katch-McArdle Calculator — Free Online Tool
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Katch-McArdle Calculator

Calculate Basal Metabolic Rate (BMR) using Lean Body Mass

Fitness Guidelines: The Katch-McArdle formula estimates Basal Metabolic Rate (BMR) based on your Lean Body Mass (LBM), making it highly accurate for individuals who know their body fat percentage. Formula: $\text{BMR} = 370 + (21.6 \times \text{LBM in kg})$. Enter your values below.
Body Composition Parameters Input

Calculation Results

⚠️ Not medical advice. For fitness, nutrition, and wellness reference only. Daily caloric requirements and dietary adjustments should be tailored to individual health goals and professional nutritional guidance.

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