How do I calculate my LBM goal?

If your goal is 10% body fat and you want to weigh 80 kg: LBM target = 80 kg × 0.90 = 72 kg. Your current LBM determines if you need to gain muscle, lose fat, or both to reach this goal.

Can you gain muscle and lose fat simultaneously?

Body recomposition is possible, especially for beginners, those returning from injury, and those in a caloric maintenance. For advanced athletes, separate bulk and cut phases are more effective for optimizing either goal.

How much muscle can be gained per month?

Drug-free beginners may gain 1-1.5 kg of lean mass per month. Intermediates 0.5-1 kg/month. Advanced athletes 0.25-0.5 kg/month. Maximum genetic limits slow gain rates as athletes approach their ceiling.

Lean Body Mass Goal Calculator

Calculate target lean body mass required to achieve a specific body fat percentage or competition weight, and estimate the timeline and caloric requirements to reach that goal.

Use the full interactive calculator below, or

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Frequently Asked Questions

How do I calculate my LBM goal?

Can you gain muscle and lose fat simultaneously?

How much muscle can be gained per month?