Lean Body Mass Calculator

Summary

Enter your sex, height, and weight to instantly calculate your lean body mass using the Boer formula.

How it works

1. Select your biological sex (male or female).
2. Enter your height in centimeters or feet and inches.
3. Enter your weight in kilograms or pounds.
4. The Boer formula computes lean body mass instantly.
5. View your LBM in both kg and lb, plus your estimated body fat percentage range.

Use cases

• Set personalized protein intake targets based on muscle mass.
• Track body composition changes over a fitness program.
• Help healthcare providers estimate drug dosing by lean mass.
• Compare LBM before and after a bulk or cut cycle.
• Estimate caloric needs more accurately than total weight alone.
• Understand how muscle-to-fat ratio affects athletic performance.

Frequently Asked Questions