Body Fat Calculator
Estimate body fat percentage, fat mass and lean mass using the U.S. Navy circumference method.
Hit Calculate to see body composition
Calculate to see waist-to-height context
Metrics appear after calculation
Your explanation appears here
Measure consistently and compare trends over time rather than relying on one reading.
Your plan appears after calculation
Test how waist or weight changes may affect estimated body fat.
Calculate your baseline first
It uses the U.S. Navy circumference method, which estimates body fat from height plus neck and waist measurements for men, and height plus neck, waist and hip measurements for women.
No. It is an estimate based on circumference measurements. For best consistency, measure at the same time of day, use the same tape placement, and compare trends rather than single readings.
Body fat percentage is easier to interpret when paired with fat mass and lean mass. These estimates help separate scale weight from body composition.
Results are estimates generated locally in your browser using circumference-based body fat equations. They are for informational purposes only, not medical, diagnostic or dietary advice. This tool is not a substitute for DEXA, clinical assessment, or guidance from a qualified healthcare professional. VisionVix accepts no liability for decisions based on this output.
