Step-by-step instructions
- Enter or select Body weight.
- Enter or select Body fat (%).
- Tap Calculate.
- Review the result shown directly below the calculator.
Lean Body Mass Calculator
Estimate lean body mass from body weight and body-fat percentage.
How to use the Lean Body Mass Calculator
Estimate lean body mass from body weight and body-fat percentage.
What the inputs mean
- Body weight
- Enter the requested weight or mass using the unit shown or a consistent unit.
- Body fat (%)
- Enter the percentage value requested by the calculator.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for Body weight and Body fat (%), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.