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ArmyBF
The US Army's official method for measuring body fat.
This method estimates body fat purely from circumference measurements (neck, waist, and for women, hips) plugged into a regression formula the US military uses for its own fitness standards.
It's fast, requires no special equipment, and is standardized enough to apply consistently across large groups of people during routine fitness assessments.
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OpenBody fat %
17.5%
US Army circumference method (DoDI 1308.03)
What you entered
Waist minus neck
34 − 15= 19.0 inUS Army formula (male)
86.010×log₁₀(19.0) − 70.041×log₁₀(70) + 36.76= 17.5%Result
Body fat %: 17.5%
Using the US Army's official circumference method, your estimated body fat is 17.5%.