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FFMI Calculator

Calculate your Fat-Free Mass Index

Your Stats

💡 About FFMI

  • • FFMI (Fat-Free Mass Index) indicates muscle mass relative to height
  • • Values above 25 are rare without performance-enhancing drugs
  • • Normalized FFMI adjusts for height differences
  • • Natural bodybuilders typically max out around 23-25 FFMI
  • • Use body fat calculator for accurate body fat percentage