How to use the Lean Body Mass Calculator (with examples)
By the Super Simple Digital Tools Team · Updated June 2026
Whether it's for work, study or everyday life, the Lean Body Mass Calculator takes the hassle out of everyday calculations. Calculate your lean body mass and body fat mass using the Boer formula. Free, instant, no signup.
Using it takes seconds: fill in the fields with your numbers, then press Calculate to run the lean body mass calculator, then copy the result or try a related tool next.
Instant results — Enter your figures and the lean body mass calculator returns an answer in seconds.
Ready to try it? Open the Lean Body Mass Calculator and get your answer in seconds.
- Instant results: Enter your figures and the lean body mass calculator returns an answer in seconds.
- Free & private: Runs in your browser — no signup, and nothing is sent to a server.
- Accurate: Uses standard formulas so you can rely on the numbers.