FREE · CALCULATORS & CONVERTERS
Lean Mass from Body Fat.
Calculate lean and fat mass from weight and a supplied body-fat percentage.
How to use Lean Mass from Body Fat
Enter the relevant measurements or dates, select units and generate. Read the calculation method and limitations with the result.
How it works
Calculate lean and fat mass from weight and a supplied body-fat percentage. Requires your supplied body-fat value; this is not an independent fat estimate or a muscle measurement. This calculator provides arithmetic or an educational estimate; it does not replace professional assessment.
Example
Generate the supplied illustrative inputs and review the assumptions.
Questions about Lean Mass from Body Fat
Is Lean Mass from Body Fat free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Requires your supplied body-fat value; this is not an independent fat estimate or a muscle measurement. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.