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Body fat calculator

Estimate body fat from a tape measure. The biggest single driver of how defined your face looks.

ft
in
in
Just below the Adam's apple, tape sloping slightly down to the front.
in
Around the navel, relaxed, after breathing out.

Enter your measurements to see your estimate.

How it works

  • Uses the U.S. Navy circumference method, a published formula from 1984 based on neck, waist, height and, for women, hips.
  • Ranges follow the American Council on Exercise categories.
  • Measure in the morning, relaxed, with the tape snug but not pressing into skin. Take each measurement twice and average.

Keep in mind

Typically within about 3–4 points of a DEXA scan. Track the trend over weeks rather than trusting one number.

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