Body Fat Calculator
Estimate body fat using common measurement methods.
Just below the larynx
At navel
Estimated body fat
15.7%
Fitness
Method
US Navy
Category
Fitness
Units
Metric (cm)
Tape-measure estimate (US Navy formula). Not a substitute for DEXA or clinical assessment.
In-depth explanation
Estimate body fat percentage with the US Navy tape-measure method using height, neck, waist, and (for women) hips. Everything runs locally in your browser — your inputs are not uploaded to produce the result.
The US Navy circumference formula — a tape-measure estimate, not DEXA or calipers. The female Navy formula includes hip circumference along with waist and neck.
It is a rough estimate. Hydration, posture, and measurement technique all affect the result. Use Body Fat Calculator for quick planning; confirm important money, tax, or health decisions with an official source or professional when needed.
Frequently asked questions
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