Health · Body Composition

Body fat calculator.

Estimate your body fat percentage with the US Navy circumference method using simple tape measurements.

Inputs

Body measurements

Sex

Height

Weight

Neck circumference

Measure just below the larynx (Adam's apple).

Waist circumference

Measure at navel level, horizontal.

Result

Fill the form and press Calculate.

Disclaimer

This calculator provides estimates based on the US Navy circumference method. Results are typically accurate within 3-4% but may vary from DEXA scans or hydrostatic weighing. For precise body composition or medical advice, consult a healthcare professional.