Body Fat Percentage Calculator for Men
Estimate your body fat percentage from tape measurements with the US Navy method, see your ACE category and fat/lean mass — right in your browser.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the body fat calculator with sex preselected to male, so the form asks only for the three measurements the men's formula needs: height, neck circumference and waist circumference — no hip measurement, unlike the women's version of this calculator.
Male body fat distributes differently than female body fat, concentrating more around the abdomen, which is why the US Navy formula for men uses waist minus neck rather than the waist-plus-hip combination used for women. Measure your waist at the navel and your neck just below the larynx for the most consistent result.
Once you enter your numbers, the result is classified on the ACE scale for men — essential fat at 2–5%, athletes at 6–13%, fitness at 14–17%, average at 18–24% and obese at 25% and above — and an optional weight field splits your body into fat mass and lean mass in kilograms.
Example. Male measurements of 180 cm height, 38 cm neck and 90 cm waist display 19.8%.
Limit. Height must be 80–250 cm, the male formula requires waist greater than neck, the female formula also requires hip, and a result outside 0–75% is rejected.