Navy Body Fat Percentage Calculator

Estimate your body fat percentage with the US Navy method. Enter a few measurements to see your estimate and fitness category.

Sex

Height (cm)

Neck (cm)

Waist (cm)

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How it works

The US Navy formula uses height plus neck and waist circumference to estimate body-fat percentage.

Categories run from essential fat through athletic, fit, average and high.

How accurate is the Navy method? +

A reasonable estimate, not as precise as a DEXA scan.

What should I measure with? +

A soft tape measure at the widest waist.