Back to all tools

Lean Body Mass Calculator | LBM & Fat Mass Estimator

Calculate your lean body mass (LBM) using the Boer, James, and Hume formulas or exact body fat percentage. Shows fat mass, lean mass, body fat category, and recommended protein intake. Designed specifically for developers and professionals, this free online calculator runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: lean body mass calculator online · lbm calculator free tool · fat free mass calculator online · body composition lean mass tool · muscle mass calculator online · lean body mass formula calculator · boer james hume lbm calculator · protein intake lean mass calculator · lean body mass calculator · lbm calculator · lean mass calculator · fat free mass calculator · body composition calculator · muscle mass calculator · lean muscle calculator · boer formula calculator

Liked this tool?

DevToolLab is free to use. If this calculator saved you some time today, please consider supporting our work.

Buy us a coffee ☕

Frequently asked questions

What is Lean Body Mass Calculator used for?

Calculate your lean body mass (LBM) using the Boer, James, and Hume formulas or exact body fat percentage. Shows fat mass, lean mass, body fat category, and recommended protein intake.

Is Lean Body Mass Calculator free to use?

Yes. Lean Body Mass Calculator is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use Lean Body Mass Calculator?

No. Lean Body Mass Calculator works immediately in your browser with no signup, login, or email address required.

Related Tools

Calculate percentages easily: find X% of Y, what percent X is of Y, percentage change, and increase/decrease by percentage.

encoding and decoding tools
math calculators

Calculate your exact age in years, months, days, hours, and minutes. Find your zodiac sign, day of birth, and countdown to next birthday.

cron and scheduling tools
date and time tools

Calculate the duration between two dates or add/subtract time periods from a date. Count workdays, weekends, and total days.

date and time tools
math calculators

More Tools You Might Like

Share code snippets, logs, and text with a shareable link. Syntax highlighting for 30+ languages, expiration controls, and password protection for Pro users.
Create short, trackable URLs with detailed click analytics. Track visitor location, devices, referrers, and more. Password protection & QR codes included.
Generate a unique URL to easily test, receive and inspect HTTP webhooks in real-time. View request headers, query parameters, JSON payloads, and more.