Health tool
Lean Body Mass
Estimate lean body mass from weight and height.
Lean Body Mass workspace
Workspace
Lean Body Mass
Results update as you change the inputs. Formulas are standard reference calculations; finance and health tools are estimates, not advice.
Result
The guide
By the utils.sbs team · Reviewed November 2026 · How we build and review tools
Quick answer
Lean Body Mass is a free browser-based health tool. Estimate lean body mass from weight and height. It runs with JavaScript arithmetic locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.
What is Lean Body Mass?
Lean Body Mass is a free browser-based health tool from utils.sbs. Estimate lean body mass from weight and height. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.
At a glance
| Category | Health |
|---|---|
| Input | Numbers and the options shown on this page |
| Output | A formatted result with intermediate values where relevant |
| Engine | JavaScript arithmetic |
| Processing | In your browser |
| Price | Free |
| Account | Not required |
How Lean Body Mass works
The calculator applies standard formulas with JavaScript number precision and shows the result immediately. Values are not sent anywhere.
How to use Lean Body Mass
- 1Open Lean Body Mass and add your input.
- 2Adjust the options: weight, height, sex.
- 3Run the tool, check the preview or result, and download the output.
When to use Lean Body Mass
- Check a calculation before making a decision.
- Work through a homework or reference problem with visible steps.
- Sanity-check a financial, health or geometry estimate.
Inputs and options
- Weight
- Enter a numeric value in kg.
- Height
- Enter a numeric value in cm.
- Sex
- Choose one of 2 options.
Limitations
Results are reference calculations. Verify financial, medical, legal or safety-critical decisions independently.
Privacy and accuracy
Lean Body Mass processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.
FAQ
Lean Body Mass questions
What can I do with Lean Body Mass?
Estimate lean body mass from weight and height. Lean Body Mass is part of the Health shelf on utils.sbs and is designed for quick, one-off tasks.
Is Lean Body Mass free to use?
Yes. Lean Body Mass is free, requires no account, and has no per-file or per-use charge.
Are my files uploaded when I use Lean Body Mass?
No. Lean Body Mass is designed to process your input locally in the browser. Files are not uploaded to a server for processing.
What formats does Lean Body Mass support?
It accepts numeric inputs and returns a clearly formatted calculation with an explanation where relevant.
Can I use Lean Body Mass on my phone?
Yes. Lean Body Mass is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.
Keep going
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