Lean Body Mass Calculator

Calculate lean body mass from total weight and body fat.

Enter Your Measurements

Weight, height, and sex required

Biological Sex

Average Lean Body Mass

Boer

James

Hume

Enter your measurements to calculate lean body mass.

Step-by-step Solution

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About This Calculator

Calculate lean body mass from total weight and body fat.

Everything is worked out in your browser as you type, so your figures never leave your device.

Pro Tips

Results update as you type — change any field to see the effect immediately.

Check that every value uses the same unit before comparing results.

Use the copy button to paste the lean body mass figures into a note or spreadsheet.

Nothing is sent to a server, so you can use this with private figures.