Body Fat Calculator
US Navy circumference method — just a tape measure.
Your measurements
Estimated Body Fat
0.0%
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About the US Navy method
This method estimates body fat percentage from a few circumference measurements rather than expensive equipment — it's less precise than DEXA scans or calipers but a reasonable, repeatable estimate for tracking change over time. Measure at the narrowest point of your waist and directly below your Adam's apple for the neck.