Lean Body Mass Calculator
Estimate body mass excluding estimated fat mass.
Estimated body mass not included in lean mass: 20.3 kg.
How to use this calculator
- Choose the equation sex and enter weight and height.
- Review the live result and use Copy result when you need to share it.
How the calculation works
The Boer equations combine weight and height using different coefficients for men and women.
Formula
The Boer equations combine weight and height using different coefficients for men and women.
Step-by-step calculation
- Choose the equation sex and enter weight and height.
- The Boer equations combine weight and height using different coefficients for men and women.
- Check the displayed result, then copy it if needed.
Worked example
A 70 kg, 170 cm woman receives an estimated lean body mass near 49 kg.
Risk guidance
Frequently asked questions
Does this tool send my inputs anywhere?
No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.
How should I use the result?
Check that the entered units and values match your situation, especially around dates, breaks, and rounding.
Related tools
Body Fat Calculator
Estimate body-fat percentage using circumference measurements.
Open toolBMI Calculator
Calculate adult body mass index from metric or imperial height and weight measurements.
Open toolIdeal Weight Calculator
Calculate a historical reference-weight estimate from height.
Open tool