GlenCalc

Lean body mass calculator

Lean body mass is your weight minus your fat: muscle, bone, organs and water. These formulas estimate it from height and weight alone.

These formulas were fitted separately for men and women.

Your answer

Lean body mass (Boer)131.5 lbAbout 23% body fat
James133.9 lb
Hume123.7 lb

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How we worked it out

Updated as you change the numbers.

  1. Weight 77.1 kg, height 177.8 cm. Boer: 0.407 × kg + 0.267 × cm − 19.2.

Method and assumptions

Boer (1984), James (1976) and Hume (1966) fitted these equations to measured body composition. They are estimates for average builds; a body fat measurement gives a more personal figure.

Questions

What is a typical lean body mass for a 5 ft 10 in, 170 lb man?

About 132 lb by the Boer formula.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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