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LeanBench
Boer formula LBM in kg from weight and height.
Lean body mass includes muscle, bone, organs, and water — essentially total body weight minus fat mass — and the Boer formula estimates it from just height, weight, and sex without needing a body-fat measurement first.
Lean mass is often used to set more accurate protein and calorie targets than total body weight alone, since it's your metabolically active tissue driving most of your calorie needs.
Daily energy expenditure with personalised macro splits.
OpenBody mass index with healthy-range guidance.
OpenUS Navy circumference method for body fat percentage.
OpenDaily hydration target based on weight, activity, and climate.
OpenLean body mass
58.9 kg
Boer formula
What you entered
Boer formula (male)
0.407×75 + 0.267×178 − 19.2= 58.9 kgResult
Lean body mass: 58.9 kg
Your estimated lean body mass is 58.9 kg — everything that isn't fat: muscle, bone, organs, and water.