Muscle Mass Calculator
NEWCalculate skeletal muscle mass from body weight and body fat percentage. Get male/female benchmark table, natural genetic potential estimate, and muscle-building tips.
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How to use
- 1Enter: weight(kg),bodyFat% (e.g. 80,20)
- 2Optionally add gender and age: 80,20,male,30
- 3Get muscle mass, body composition breakdown, and benchmarks
Frequently Asked Questions — Muscle Mass Calculator
What is a healthy muscle mass percentage?+
Typical skeletal muscle mass: Men: 38-54% of total body weight. Women: 28-39%. Very lean athletes may exceed 50% (men) or 40% (women). In absolute terms: intermediate male lifters have 45-55 kg of muscle.
How quickly can you build muscle?+
Beginner gains: 1-2 kg muscle/month with proper training and nutrition. Intermediate: 0.5-1 kg/month. Advanced: 0.25-0.5 kg/month. These rates slow as you approach your genetic maximum.