Yağsız Vücut Kütlesi Hesaplama (LBM)
Boy, kilo ve cinsiyetinizi girin, yağsız vücut kütlenizi hesaplayın.
Lean Body Mass Calculator estimates fat-free body weight using various formulas and body composition methods for fitness and medical assessment.
What is Lean Body Mass?
Lean Body Mass (LBM) represents the weight of your body minus all fat, including muscles, bones, organs, and water. It is a key indicator of metabolic health and physical fitness.
Common LBM Calculation Formulas
Boer Formula
- Men: LBM = 0.407 × weight + 0.267 × height – 19.2
- Women: LBM = 0.252 × weight + 0.473 × height – 48.3
Hume Formula
- Men: LBM = 0.32810 × weight + 0.33929 × height – 29.5336
- Women: LBM = 0.29569 × weight + 0.41813 × height – 43.2933
James Formula
- Men: LBM = 1.1 × weight – 128 × (weight/height)²
- Women: LBM = 1.07 × weight – 148 × (weight/height)²
How to Use Lean Body Mass Calculator
- Enter gender, weight, and height
- Select calculation formula
- Get LBM estimate and body fat percentage
LBM Ranges by Age and Gender
| Age Group | Men LBM (lbs) | Women LBM (lbs) |
|---|---|---|
| 18-25 | 130-150 | 100-120 |
| 26-35 | 135-155 | 105-125 |
| 36-45 | 135-155 | 105-125 |
| 46-55 | 130-150 | 100-120 |
Body Fat Percentage from LBM
% Body Fat = [(Total Weight – LBM) / Total Weight] × 100
Lean Body Mass Applications
LBM is used in fitness assessment, medical evaluation, and sports performance analysis.
When to Use Lean Body Mass Calculator
- Fitness and body composition assessment
- Diet and nutrition planning
- Medical evaluations
- Athletic performance monitoring
Frequently Asked Questions
What is the difference between LBM and muscle mass?
LBM includes muscles, bones, organs, and water, while muscle mass refers only to skeletal muscle tissue. LBM is always higher than muscle mass.
How accurate are LBM calculators?
LBM calculators provide estimates based on formulas. More accurate measurements require DEXA scans, bioelectrical impedance, or hydrostatic weighing.
Can LBM change?
Yes, LBM can increase with resistance training and decrease with age, illness, or inactivity. Maintaining LBM is important for metabolic health.
Conclusion
The Lean Body Mass Calculator provides valuable insights into body composition, helping track fitness progress and assess metabolic health.