Does Lean Body Mass upload my file or text to Tool-You servers?

No. Lean Body Mass runs in this browser tab. Files stay on the device. Limit note: Boer formula. Mass and height above zero. Not Devine IBW. Not DEXA.

Should I use Ideal Body Weight instead of Lean Body Mass?

Use Lean Body Mass when you need Boer estimate from mass, height, and sex. Use Ideal Body Weight when you need Devine IBW with lb and sex. They share a category (Health) but not the same job.

Lean Body Mass

Boer estimate from mass, height, and sex.

Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.

What Lean Body Mass does

Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.

Practical limit for Lean Body Mass: Boer formula. Mass and height above zero. Not Devine IBW. Not DEXA. That is why output can differ from heavy desktop Health software. Read the tool-specific note again: Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.

How to use Lean Body Mass

Confirm you need Lean Body Mass, not Ideal Body Weight (Devine IBW with lb and sex.). Address: /health/lean-body-mass.
Enter the numbers or dates Lean Body Mass uses. Boer estimate from mass, height, and sex.
Read the result as Lean Body Mass defines it — not as BMI Calculator (Body mass index in metric or imperial units.). Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.
Lean Body Mass is an estimate in the browser, not professional advice. Boer formula. Mass and height above zero. Not Devine IBW. Not DEXA.
Need a different formula? Try BMI Calculator (Body mass index in metric or imperial units.) instead of stretching Lean Body Mass.

When not to use Lean Body Mass

Skip Lean Body Mass when a neighbor tool matches better — start with Ideal Body Weight or BMI Calculator — or when the description already warns the job will fail. In the tool’s own words: Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.

Questions about Lean Body Mass

What does Lean Body Mass do that other Health pages on this site do not?: Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan. Short version: Boer estimate from mass, height, and sex.
Does Lean Body Mass upload my file or text to Tool-You servers?: No. Lean Body Mass runs in this browser tab. Files stay on the device. Limit note: Boer formula. Mass and height above zero. Not Devine IBW. Not DEXA.
Should I use Ideal Body Weight instead of Lean Body Mass?: Use Lean Body Mass when you need Boer estimate from mass, height, and sex. Use Ideal Body Weight when you need Devine IBW with lb and sex. They share a category (Health) but not the same job.
What are the limits of Lean Body Mass?: Boer formula. Mass and height above zero. Not Devine IBW. Not DEXA. Also: Uses the Boer formulas for lean mass. Unlike Ideal Body Weight this is not Devine kilograms. Unlike BMI this is not a band. Mass and height must be above zero. Not a DEXA scan.