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.

← Tüm Araçlar

Sağlık

Kas Potansiyeli ve FFMI Analizörü

Vücut geliştirmeciler için temel referans. Yağsız kütle indeksinizi (FFMI) hesaplayın ve doğal genetik sınırınızı tahmin edin.

Body Stats

Mevcut Kilo (kg)

Boy (cm)

Vücut Yağı (%)

15%

Bone Structure (For Potential)

Bilek Çevresi (cm)

Ayak Bileği Çevresi (cm)

Normalize Edilmiş FFMI

21.0

Vücut Geliştirme Durumu

Orta / Atletik

Yağsız Vücut Kütlesi

68.0 kg

Max Potential

46.7 kg

Vücut Geliştirme İpucu

FFMI, sporcular için BMI'dan daha kullanışlıdır. 25'in üzerindeki normalize edilmiş bir skor, çoğu doğal sporcu için 'üst sınır' olarak kabul edilir.

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.