Fat-Free Mass Index (FFMI) is a calculation that accounts for your muscle mass relative to your height. Unlike BMI, it uses your body fat percentage to determine how much of your weight is lean muscle.

What is a 'natural' FFMI limit?

Research by Kouri et al. suggests that a normalized FFMI of 25 is the upper limit for the vast majority of natural (drug-free) athletes. Scores significantly above 25 are rarely achieved without the use of performance-enhancing drugs or exceptional genetics.

How is Maximum Muscular Potential estimated?

This tool uses formulas developed by researchers like Casey Butt, which use bone structure (wrist and ankle circumference) as an indicator of your frame's capacity to support muscle mass.

← كل الأدوات

الصحة واللياقة

محلل الإمكانات العضلية ومؤشر FFMI

المرجع النهائي للاعبي بناء الأجسام. احسب مؤشر الكتلة الخالية من الدهون (FFMI) وقدر حدودك الجينية الطبيعية.

Body Stats

الوزن الحالي (كجم)

الطول (سم)

نسبة الدهون (%)

15%

Bone Structure (For Potential)

محيط المعصم (سم)

محيط الكاحل (سم)

مؤشر FFMI المعدل

21.0

حالة البناء العضلي

متوسط / رياضي

الكتلة العضلية

68.0 kg

Max Potential

46.7 kg

نصيحة بناء الأجسام

مؤشر FFMI أكثر فائدة من مؤشر كتلة الجسم للرياضيين. الدرجة المعدلة فوق 25 تعتبر غالباً الحد الأقصى لمعظم الرياضيين الطبيعيين.

FFMI Scale

18-20: Average. 22-23: Distinctly muscular. 25-26: Extremely muscular (Upper limit for most natural athletes). 26+: Exceptional/Genetic outlier.

Medical Disclaimer: This tool is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.