Muscle Mass Calculator
Estimate your lean body mass and body fat percentage with our free tool based on the U.S. Navy method. A vital calculator for fitness enthusiasts and bodybuilders to track their progress.
Your Body Measurements
Enter your details to estimate your body composition.
U.S. Navy Method
This calculation is based on the U.S. Navy body circumference method. It is an estimation and may not be perfectly accurate. For precise measurements, consult a healthcare or fitness professional.
How to Use This Calculator
- Select Units: Choose between Metric (cm, kg) or Imperial (in, lbs).
- Enter Details: Provide your gender, height, weight, and neck/waist measurements. Females will also need to provide hip measurements.
- Calculate: Click "Calculate" to see your estimated body fat %, lean body mass, and fat mass.
Frequently Asked Questions
Ready to Track Your Gains?
Try our free muscle mass calculator now for an instant body composition analysis!