Adjust the inputs below. Results update as you type.
The Army uses neck and waist measurements (men) or neck, waist, and hip measurements (women) with height to estimate body fat via a logarithmic formula approved by the Department of Defense. Maximum allowable body fat varies by age group and gender. This is not a medical assessment—hydrostatic weighing or DEXA scans are more accurate but less accessible.
U.S. Navy circumference method; measure in inches (abdomen at navel for men, narrowest waist for women; neck below larynx; hip at widest).
Estimated body fat
20.4%
Estimate only; DEXA or hydrostatic tests are more accurate.