Use this calculator to estimate your lean body mass (LBM). LBM is the weight of everything in your body except fat (muscles, bones, organs, etc.). This tool requires your weight and body fat percentage to calculate the amount of lean mass you have.
Lean Body Mass (LBM) is the total weight of your body minus the weight of fat. This includes muscles, bones, skin, organs, and other non-fat tissue. LBM is an important measure for assessing fitness and overall body composition, especially for athletes and those focused on building muscle.
The Lean Body Mass is calculated using the following formula:
LBM = Weight * (1 - Body Fat Percentage / 100)
In this formula, "Weight" is your total body weight, and "Body Fat Percentage" is the percentage of your body weight that is fat. The result is the weight of everything else in your body—your muscles, bones, organs, etc.
Your lean body mass provides insight into your fitness level. A higher LBM often indicates a greater proportion of muscle mass, while a lower LBM may suggest higher fat levels. Athletes and bodybuilders often focus on increasing LBM for strength and performance.